steaming light on sailboat

Steaming Light on Sailboat: A Guide to Proper Usage

by Emma Sullivan | Aug 11, 2023 | Sailboat Maintenance

== Short answer: Steaming light on sailboat == A steaming light is a white navigation light fitted on the mast of a sailboat to provide visibility during low-visibility conditions. It is typically placed near the front side of the mast and angled downwards to indicate that the vessel is under power and moving forward. This light helps other boats identify and avoid collisions, ensuring safe navigation at night or in limited visibility situations.

Understanding the Purpose of a Steaming Light on a Sailboat: What You Need to Know

Have you ever been out on a sailboat and noticed a small light at the top of the mast? You might have wondered what its purpose is or why it’s necessary. Well, that little light is called a steaming light, and it plays a crucial role in ensuring safety and navigation on a sailboat . In this blog post, we will dive into the details of understanding the purpose of a steaming light on a sailboat.

To begin with, let’s clarify what exactly a steaming light is. A steaming light is a white-colored navigation light located on the front of the mast or near the bow of a sailboat. Its main function is to provide visibility to other vessels during low-light conditions or at night. This means that whether you’re sailing in foggy weather, dim lighting, or after sunset when natural visibility decreases, the steaming light will maximize your boat’s presence to prevent collisions with other boats.

So why is it specifically called a “steaming” light? The term “steaming” refers to sailing when using an engine rather than relying solely on wind power. When you are using your boat’s engine for propulsion instead of sailing with just your sails, it is known as “motoring” or “steaming.” The steaming light got its name because it primarily signifies that the vessel has powered propulsion engaged rather than utilizing only wind power.

Now that we know what a steaming light does and where it gets its name from let’s discuss more about its importance. One major reason for having this navigation aid onboard is compliance with international boating regulations and standards set by organizations like COLREGs (Convention on the International Regulations for Preventing Collisions at Sea). These regulations ensure safe navigation practices globally and require boats to display certain lights for visibility purposes both to avoid accidents and allow other captains to understand their intentions.

When operating under engine power, displaying only proper red (port) and green (starboard) sidelights can confuse other boaters, as these lights typically indicate the presence of a vessel under sail. To avoid such confusion, the use of a steaming light in conjunction with the appropriate sidelights clarifies that the boat is motoring and not just relying on its sails for propulsion.

Another important aspect to note about steaming lights is their distinct positioning on a sailboat . Typically, they are mounted at least one meter above the deck level to ensure maximum visibility. This height allows for unobstructed illumination, making it easier for other boaters to see your vessel from afar. It’s crucial to maintain this specific positioning to comply with regulations and maximize safety on the water.

In summary, understanding the purpose of a steaming light on a sailboat is essential for any sailor or boat owner. Its primary function is to provide visibility during low-light conditions or at night when using engine power instead of relying solely on wind power. By complying with international regulations and properly displaying navigation lights like a steaming light , you enhance safety by avoiding confusion between sailing and motoring vessels. So next time you’re out on the water after dusk or in foggy weather, remember the importance of that little but mighty steaming light atop your sailboat’s mast!

Step-by-Step Guide: How to Install a Steaming Light on Your Sailboat

Installing a steaming light on your sailboat might seem like a daunting task, but with the right guidance and a bit of patience, you’ll have it up and running in no time. In this step-by-step guide, we’ll walk you through the process of installing a steaming light on your sailboat, ensuring that you have a safe and well-lit vessel on your next sailing adventure.

Step 1: Gather the necessary tools and materials Before diving into the installation process, make sure you have all the tools and materials required. You’ll need a steaming light fixture, wires (preferably marine-grade), heat shrink tubing, electrical connectors, wire cutters/strippers, crimping tool, electrical tape, screwdrivers (flathead and Phillips-head), mounting brackets or screws if needed, and a drill with appropriate bits.

Step 2: Identify the ideal location for installation Finding the right spot for your steaming light is crucial as it needs to be clearly visible from all angles while ensuring it won’t interfere with other equipment or rigging. Typically, sailors prefer placing it at the masthead or near where the mast meets the deck.

Step 3: Prepare for installation Ensure that all power sources are disconnected before beginning any work. Next, carefully remove any existing fixtures or wiring from the chosen location (if applicable). If there’s already an ample power supply nearby (e.g., an existing navigation light circuit), tap into it to minimize additional wire routing.

Step 4: Mount the steaming light fixture If your chosen spot requires mounting brackets or screws for support, position them accordingly using suitable hardware. Ensure they are firmly secured to prevent any movement due to vibrations caused by sailing conditions. Attach the steaming light fixture securely to these brackets using screws provided with the fixture.

Step 5: Connect wires and ensure proper wiring configuration Strip off some insulation from both ends of each wire to be connected. Using heat shrink tubing, slide it over one end of each wire to ensure a clean finish once the connections are made. Connect the appropriate wires from the steaming light fixture to the power supply or existing wiring and secure them using electrical connectors. It’s crucial to follow a proper wiring configuration, so refer to the manufacturer’s instructions or consult a professional if needed.

Step 6: Test functionality and safety Once all connections are securely made, reconnect the power source and turn on your sailboat’s battery. Switch on your steaming light and verify that it’s functioning correctly. Check for any loose connections, flickering lights, or signs of overheating during this testing phase. If everything looks good, proceed to finalize the installation.

Step 7: Secure and protect the wires Using zip ties or cable clamps, neatly bundle and secure all wires along their path towards the power source or existing wiring nearby. This step is especially important as it prevents any accidental snagging or damage caused by movement while sailing.

Step 8: Add finishing touches To ensure long-lasting durability and protection against environmental factors (moisture, saltwater), add an extra layer of weather-resistant insulation tape around exposed wiring connections. This additional safeguard will help shield your newly installed steaming light from any potential issues that may arise due to harsh maritime conditions.

By following these step-by-step instructions carefully, you can install a steaming light on your sailboat like a pro! Not only will you be adding an essential safety feature to illuminate your vessel in low visibility situations but also enhancing its overall aesthetics for impressive nighttime sailing adventures. So don’t let darkness dampen your enthusiasm – take charge of your boat’s illumination and enjoy safe sailing every time!

Common FAQs About Steaming Lights on Sailboats: Answered!

Introduction: When it comes to sailboats, there are often many questions that arise about various aspects of their features and functionalities. One such area of curiosity is the steaming lights on these vessels . To shed some light on this topic, we have put together a list of common frequently asked questions (FAQs) regarding steaming lights on sailboats, along with their detailed answers. So without further ado, let’s dive into these queries and unravel the mysteries surrounding steaming lights!

Question 1: What are steaming lights? Answer: Steaming lights refer to a specific type of navigation light installed on sailboats . These lights are commonly found on the front or aft of a vessel and emit a white light that extends over a defined arc.

Question 2: Why are steaming lights necessary for sailboats ? Answer: The main purpose of steaming lights is to ensure the safety and visibility of sailboats while navigating in low visibility conditions or at night. By illuminating the boat from forward or aft, they help other vessels identify its position, direction, and whether it is underway.

Question 3: Are steaming lights always required to be displayed ? Answer: Yes, according to international maritime regulations (COLREGS), all mechanically propelled vessels (including sailboats) exceeding a certain length must display proper navigation lights during nighttime navigation or in times of restricted visibility. Steaming lights are an essential component of these required navigational signaling devices.

Question 4: Where should steaming lights be positioned on a sailboat ? Answer: Typically, steaming lights are mounted on either the front masthead or closer to the bow (foremost part) of the vessel . The exact positioning depends on the boat’s design and requirements outlined by local boating regulations.

Question 5: Can other colored lights be used instead of white for sailing at night? Answer: No, according to international standards, specifically Rule 23 of COLREGS, steaming lights on sailboats must emit a white color to maintain consistency and avoid confusion with other types of vessels. White lights also have the advantage of visibility at greater distances.

Question 6: Are there any rules regarding the brightness or intensity of steaming lights ? Answer: Yes, regulations exist concerning the luminous intensity required from steaming lights . However, these requirements differ depending on the length of the vessel and are specified in international maritime regulations or local boating guidelines. Sailors must ensure their steaming lights meet these specifications.

Question 7: Can steaming lights be used while at anchor or in port? Answer: No, steaming lights should not be used while a sailboat is at anchor or docked in a port. These lights are specifically designed to indicate that a vessel is underway. When anchored or moored, different lighting configurations, such as an anchor light or deck-level navigation lights, should be used instead.

Conclusion: Understanding the significance and proper usage of steaming lights on sailboats is crucial for both experienced sailors and newcomers to ensure boating safety. In this blog post, we have addressed some common questions about these navigation lights and provided detailed explanations for each query. By following international regulations and local guidelines regarding the positioning, color, brightness, and usage of these essential lighting devices, sailors can navigate their vessels confidently even in reduced visibility conditions. Remember, responsible sailing includes being knowledgeable about every aspect of your boat’s equipment – including its illuminating features!

Choosing the Right Steaming Light for Your Sailboat: Factors to Consider

Picture this: you’re sailing gracefully through the open waters, harnessing the power of the wind, when suddenly darkness descends upon you. The sun has set, and it’s time to rely on your trusty steaming light to guide your way. But wait! How do you choose the right one? Fear not, fellow sailors, for we are here to shed some light (pun intended) on this important decision. Here are some factors you should consider before picking out the perfect steaming light.

1. Regulations and Safety Standards: First and foremost, always adhere to regulations and safety standards set by maritime authorities. Different jurisdictions might have specific requirements regarding visibility range, color specifications, mounting heights, and more. Familiarize yourself with these guidelines to avoid unnecessary fines or safety hazards.

2. Visibility: Ahoy there! One of the primary purposes of a steaming light is to ensure that other vessels can see you while underway. Consider both the intensity of the light and its range. Opt for a light that boasts exceptional brightness without blinding nearby captains (we don’t want any sailors rubbing their eyes in confusion!).

3. Energy Efficiency: As responsible stewards of our oceans, sustainability should always be on our minds – even when it comes to choosing a simple steaming light. Look for LED lights as they consume significantly less power compared to traditional incandescent bulbs while providing excellent illumination throughout your journey.

4. Durability: When it comes to marine equipment, durability is essential since it may face harsh weather conditions such as intense sun exposure and heavy rainstorms – not to mention saltwater corrosion! Seek a steaming light specifically designed for marine environments; preferably made from strong materials like stainless steel or robust plastics.

5. Ease of Installation: Unless you’re an adept sailor who thrives on complex wiring tasks reminiscent of navigating through treacherous waters, selecting a steaming light that is easy to install and maintain is paramount. Look for lights that come with simple mounting options and clear instructions – nobody wants to be left in the dark (literally) while fumbling around with confusing installation manuals.

6. Compatibility: Your sailboat’s existing electrical system should be considered when choosing a steaming light. Ensure that the voltage requirements of your chosen light match those of your marine battery system. Additionally, check if the wiring connections are compatible for seamless integration.

7. Aesthetics: Ah, sailors are known for their keen sense of style! While aesthetics may not directly impact the functionality of a steaming light, many sailors take pride in outfitting their vessels with accessories that enhance its overall design. Consider opting for a sleek and modern design that complements the aesthetics of your sailboat while providing superior performance.

8. Value for Money: As much as we hate to admit it, costs play an important role in decision-making processes. Research different brands and models to find out which ones offer excellent value for money without compromising on quality or reliability. Remember, skimping on safety equipment isn’t just unwise; it could also turn into an expensive mistake down the line.

By considering these factors and conducting thorough research, you can confidently choose the right steaming light for your sailboat – ensuring safer navigation during both day and night expeditions. May your voyages always be illuminated by the perfect beacon, guiding you towards memorable adventures on the high seas !

Troubleshooting Tips for Maintaining your Steaming Light on a Sailboat

Maintaining the steaming light on a sailboat is essential for safe navigation, especially during low visibility conditions. This small but mighty light not only helps you see ahead but also signals your presence to other vessels on the water. However, as with any electrical equipment, issues can arise that require troubleshooting and maintenance. In this blog post, we will provide you with professional, witty, and clever tips to ensure your steaming light stays in top-notch condition.

1. Check the Basics: First things first – let’s start with the basics! Before diving into complex troubleshooting techniques, make sure to inspect the obvious factors that could lead to a malfunctioning steaming light. Check if it’s properly connected and securely fastened to avoid loose or faulty wiring connections—an easy fix that might save you hours of troubleshooting later!

2. Don’t Underestimate Corrosion: Ahoy there Captain! When it comes to maritime environments, corrosion is your worst enemy. The combination of saltwater spray and constant exposure can wreak havoc on electrical systems onboard; your steaming light is no exception! Regularly inspect the contacts and terminals for signs of corrosion or rust buildup. Use a brush or a fine-grit sandpaper to remove any unwanted visitors from these surfaces. Remember, a clean connection ensures optimal performance !

3. Fuse in Time Saves Nine: Some sailors tend to forget about fuses while troubleshooting their boat’s lighting system—don’t be one of them! The humble fuse protects your electrical system from potential overloads, shorts, and fire hazards caused by an unexpected surge in current flow . If your steaming light fails to illuminate even after checking wiring connections and corrosion issues, don’t overlook this vital component! Replace any blown fuses promptly according to their specifications.

4. Shine Bright Like a Pro: “A dim steaming light? Oh buoy!” Dim lights can affect visibility for both yourself and other mariners around you—so don’t compromise on this important safety feature! If your steaming light seems less luminous than usual, check for bulb degradation. Even a slightly loose bulb can significantly reduce its brightness. Tighten it up carefully or, better yet, replace it with a fresh and bright LED bulb that offers increased energy efficiency and longevity.

5. Put the Voltmeter to Work: When all else fails, put your trust in technology! The trusty voltmeter can help you diagnose electrical issues like a true sailor troubleshooter. Connect the meter to the terminals of your steaming light and measure the voltage supply when turned on. An insufficient voltage reading indicates wiring problems or potential battery drain issues that need further inspection.

6. Beware of Murphy’s Law: Ahoy there Landlubber! When troubleshooting any onboard issue, always keep Murphy’s Law in mind: “Anything that can go wrong will go wrong.” That’s why having spare parts like bulbs, fuses, and even extra wire connectors is essential for sailboat maintenance. Preparation is key when cruising on the open water !

7. Seek Help from Fellow Sea Dogs: Remember, you’re not sailing alone in this boat—a vast community of seasoned sea dogs is out there ready to lend a helping hand! Don’t hesitate to consult online forums or reach out to fellow sailors who might have encountered similar issues before. They may share their witty anecdotes and clever solutions that could solve your steaming light troubles faster than you think!

At the end of the day, maintaining your steaming light is not just about complying with maritime regulations; it’s about ensuring safe passage for both yourself and others on the waterways. By following these troubleshooting tips – from checking connections and addressing corrosion to involving technology like voltmeters – you’ll be able to maintain an illuminated path amidst challenging maritime conditions.

So set sail confidently knowing that even if darkness falls upon you (figuratively or literally), you’ll be well-prepared to troubleshoot and maintain your steaming light like a true professional sailor.

Don’t Set Sail Without It: The Importance of a Functional Steaming Light

When embarking on a sailing adventure, it’s crucial to ensure that every aspect of your vessel is in impeccable condition. From the sails to the rudder and everything in between, one essential component that often goes unnoticed is the steaming light. This small yet mighty fixture plays a significant role in ensuring both your safety and that of other sailors out on the water. In this blog post, we will explore why having a functional steaming light should never be overlooked when setting sail.

Firstly, let’s understand what a steaming light actually is. Mounted on top of the mast or at its front, the steaming light serves as an all-around white navigation light for boats under power. Its primary purpose is to help you stay visible to other vessels nearby by indicating your direction of travel at night or during periods of diminished visibility such as fog or heavy rain.

Now, you may be wondering why this seemingly inconspicuous light deserves so much attention. Well, think about it – imagine sailing through dense fog without a working steaming light! Without this beacon guiding your path, not only are you jeopardizing your own safety but also putting fellow seafarers at risk by refusing to comply with maritime regulations.

Additionally, navigating harbors and congested waterways becomes an even greater challenge without an operational steaming light. Picture yourself approaching a bustling marina late into the evening; by illuminating your boat’s foredeck with its bright white glow, the steaming light acts as a signal for others around you to be cautious and respect your right of way. This simple yet effective communication tool prevents accidental collisions and fosters harmony among boaters sharing busy waters.

But if safety isn’t reason enough to prioritize a fully functioning steaming light before each voyage, consider this: Mariners have an inherent responsibility to adhere to international maritime regulations set forth by bodies such as the International Maritime Organization (IMO). These regulations explicitly state that every vessel under power must display a white steaming light while underway during hours of darkness or limited visibility. By neglecting this requirement, you not only risk severe penalties but also jeopardize your reputation as a responsible boater.

Now that we understand the importance of a functional steaming light, it’s essential to keep it well-maintained and regularly inspected. After all, there’s nothing worse than setting sail only to have your navigation light fail at the most inopportune moment. Inspecting the wiring, replacing any worn-out bulbs, and ensuring proper alignment are simple steps that should form part of your pre-departure routine.

Remember, when it comes to sailing, “Don’t Set Sail Without It: The Importance of a Functional Steaming Light.” This unassuming yet crucial piece of equipment acts as both an indispensable safety feature and a responsible adherence to maritime regulations. So, before you embark on your next voyage, take the time to ensure that your steaming light is functioning optimally – after all, smooth seas start with being visible and considerate towards fellow sailors!

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Navigation Lights for Sailboats (And How To Read Them)

Last Updated by

Capt Chris German

June 15, 2022

Navigation lights on a sailboat can be confusing. If you understand the reason behind why they are the way they are however, they can make a lot more sense.

At their heart, sailboats are really just a power boat and as such must adhere to all power boat rules such as navigation lights. Other times however, a sailboat is classified in a special category. They have a set of additional lights they CAN show as an option, but are not always required to do so.

That’s about as clear as mud if you ask me and I contend that that is where the confusion about lighting a sailboat begins.

Just because you can show a light to identify yourself in times of low visibility, does not mean you have to and then we add in a little sibling rivalry between power and sail and things get downright adversarial when it comes to navigation and the night.

Table of contents

The USCG says You’re a Power Boat Whether You Like It or Not

Much to the consternation of many a sailor who has earned a commercial license to drive their sailboat, when you received your credential from the USCG it says you are a master of steam and power across the top with no mention of wind as a source of propulsion.

It is not until you read the back pages of your little red book that feels like a passport and looks like a US Sailing credential, that you will see the term “sail auxiliary”. That is because most of the time the U.S. Coast Guard knows that you are primarily reliant on your mechanical power to propel your vessel.

It's a sad thing, but the days of commercially viable sail boats are done and all but the most select few even have sails let alone use them as their primary power source. All sail boats by law are powerboats, but not all powerboats are sailboats.

Navigation Lights for a Power Boat

As a power boat, you are required to show certain lights and have been required to do so before power was even invented. 

In the days of man powered vessels like the viking ships who relied on oars while in close quarters to power their vessels, they needed to show other boats, friend or foe, where they were by showing lanterns in the dark to identify themselves. As you know, it is a time honored rule among all the nations of the world both past and present, that you must avoid a collision at all costs while at sea and even the viking knew that you should not run into things.

By lighting the front and back of your boat, you could warn other boats of your presence as well as identify which way you were heading. As such there is a very specific rule in the Code of Federal Regulations Number 46 (CFR46 by common name) that spells out with detail how many, the color, the luminosity or brightness, the angle of visibility and the location of all of the lights required for navigation on every single boat, seaplane, submarine and other nondescript vessel conceived by man to date that they must show while underway in reduced visibility.

And there is no flexibility in the rules.

As such a power boat, and by extension all sailboats, MUST, without question show one green light on the starboard bow and one red light on the port bow and one all around white light or lights while operating in reduced visibility. These lights should shine at all 360 degrees of visibility with the bow lights shining at an angle of dead ahead to 22.5 degrees abaft the beam and the stern lights shining 225 degrees dead aft. A forward facing masthead light that is white in color shall shine forward to comply with the directive that all vessels must carry an all around white light. For more read here .

As you can see, there isn’t much wiggle room when it comes to lights that must be shown.

Sailboats get a little flexibility with lights

Sailboats however, are a little different when they are in fact sailboats, which is only when you are entirely reliant on the wind for power and in no way reliant on any mechanical or manual means of propulsion. And for good reason.

Back in the day when men were men and sailboats were wooden, fire was a major concern. Sails were coated with wax and other flammable substances and the wood on boats was saturated with oils and grease. Even the ropes were plant materials saturated with oils to keep them pliable and strong.

Add those highly flammable substances to a parching environment like the sea and you had what was essentially a giant floating tinderbox.

Then tell that giant floating tinderbox that they need to identify themselves to the world at large at night using oil lamps with flames because batteries and lights were not invented yet. It didn't take very long or very many ships burning to the water line for the Governments to say to the sailboats, you get to do things a little different.

As such, sailboats are given special dispensation when it comes to lights aloft. They don't have to show an all around white light in their rigging because no one wanted to set their rig on fire with oil lamps 60 feet up in their rig.

However, when a sailboat takes their sails down such as when they are powered or at anchor, they must resume the display of an all around white light or lights aloft. That became a real challenge with aluminum masts and the disappearance of rat lines on the shrouds because there was no easy way to climb the rig and check the bulbs up the mast on a regular basis. 

Red over Green Sailing Machine

I have no idea where the history of this particular light comes from, but if you ever take a deck exam with the USCG, you better remember this mnemonic. An all around red light over an all around green may be displayed on a vessel during times of reduced visibility to indicate that a vessel is operating under sail power alone. 

I won’t even speculate on how or why they came up with this particular light configuration, but if you want to use these lights as a sailing vessel, you can do so, but that means that you will need three all round lights at the top of your mast, an all around white, an all around red and an all around green, just in that order.

The red over green is to be displayed in addition to the running lights or the red and green bow lights with the 225 degree stern light. As always, when the motor comes on, so does the steaming light or the forward facing white light that is also usually about ¾ of the way up on your mast to complete the requirement of an all around white light that indicates a power vessel.

What is a “steaming light” and why are you mentioning it now?

Most sailboat electrical panels will have a switch that is labelled “steaming light” and it will only come on when your anchor light is off. This is probably the most confusing part of sailboat navigation lights so if you are confused about this, you're in good company as most people are. 

A “steaming” light is named thusly, going back to the days of steam powered sailboats where when they fired up their boilers and doused the sails, they became a power boat once again. There aren’t too many steam powered boats, let alone steam powered sailboats, but the name stuck and it is a vestige of a bygone era.

Either way, when you fire up your motor, you turn on your “steaming light” and that locks out the all around white light which is used for anchoring to minimize the number of switches on your panel and reduce the number of wires in your mast. The fewer wires, the less chance of something not working or becoming disconnected.

The steaming light and the anchor light both go up the mast, but you can’t use an all around white light while using the 225 degree stern light at the deck level because to other boaters you would look like you have two white lights from the stern and that would be confusing.

The anchor light is used exclusively for anchoring while the steaming light is used to indicate you are a power vessel while underway.

As to why I am mentioning it now in the article, is because this would have blown your mind if I started with this subject cause it can be really confusing stuff.

Aspect Recognition with Lights

Remember when I said earlier that lights can help you tell others which way you are heading as well as tell you which way other boats are heading? That is called the aspect of the vessel and the USCG tests you on this for your deck exam as well. 

Knowing that the bow lights go 22.5 degrees abaft the beam on both sides or 112.5 degrees on each side, and the stern light faces 225 degrees aft for a total of 360 degrees of visibility, you can tell a lot about where a boat is heading and who has the right of way.

One thing that's easy to remember is red means stop and if you see a vessel's red light, it means stop as you are the give way vessel and approaching the other vessel from his port side. Conversely it works with green as well as that means you are approaching from the other vessel's starboard side and you are the standon vessel.

If you see a red and green light equally low on the horizon, that means your heading dead on into another vessel's path and conversely if all you see is a white light low on the horizon, it means you are overtaking another vessel power or sail, we don’t care because it is an overtaking situation. However, any time you do see a white light aloft in addition to the red and green bow lights, you know you are encountering a power boat.

Then there are angular approaches as well, where you see white and red or white and green light low on the horizon. You know in that case you are seeing a portion of the bow lights and stern lights from the side approaches of a vessel. Based on which direction those lights are heading, you can deduce which way that boat is going in relation to your boat.

So put it all together and you see a green light and a white light low on the horizon with a red over green light aloft, you know that you are approaching a sailboat that is traveling to your port and that might make you the standon vessel. That is of course, if we didn’t concern ourselves with windward and leeward and port tacks and starboard tacks, but that is a discussion for another article. So stay tuned when we talk about sailing rules and the right of way. But for now, do good, have fun and sail far.

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Capt Chris German is a life long sailor and licensed captain who has taught thousands to sail over the last 20 years. In 2007, he founded a US Sailing-based community sailing school in Bridgeport, CT for inner city youth and families. When Hurricane Sandy forced him to abandon those efforts, he moved to North Carolina where he set out to share this love for broadcasting and sailing with a growing web-based television audience through The Charted Life Television Network.

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Boat Navigation Lights Rules: Illustrated Beginners Guide

When navigating at night, the lights on other boats are your first clue about the moving dangers around you. And your navigation lights are your first line of safety in avoiding collisions in the dark, and they tell others vessels what you are and what you are doing. The rules sound complex, but with a little understanding you can get the basics for any situation.

So what are the basic navigation light rules? For most small vessels, motoring requires red and green (port and starboard) lights, and a white light visible in all directions around the boat. This is almost always a stern light and a masthead light on sailboats. Boats under sail require port and starboard lights, and a white stern light. Sailboats below sixty-five feet may show a tricolor light at the masthead instead of side and stern lights when sailing.

That's it, in a nutshell. There's a little more to it, as the rules change with different sizes and there are some specifics about angles of display for the colors. Identifying other ships at sea requires more study, but the basics are the same. And it's not much trouble to make sure you've always got the proper lights on your vessel.

On this page:

What are the official colregs rules for your sailboat, what about the uscg (united states coast guard) rules, lighting at anchor, identifying the boats around you.

The International Regulations for the Prevention of Collision at Sea , abbreviated "COLREGS" is very specific about the lights required, their shapes and sizes, and the distance they must be visible. For the smaller boat, the following definitions apply.

• Masthead Light - a white light placed centerline on the boat showing an arc of 225 degrees with 112.5 degrees either side of the front of the vessel.
• Sidelights - A red light on the port side and a green light on the starboard. They must show an arc of 112.5 degrees from centerline of the bow.
• Stern light - A white light on the stern of the boat showing an unbroken arc of 135 degrees from centerline of the vessel.
• All-round light - A light showing in an unbroken arc of 360 degrees.

The good news is you need not measure these angles. Any properly installed USCG or COLREGS approved light which will cover the correct arcs. If you have to replace the original light from your boat, make sure it's with an approved replacement.

Lights When Sailing

The specific rules for a sailboat under sail are in COLREGS Rule 25 and vary slightly with the size of the boat. A sailboat powering is considered a power boat and falls under in Rule 23.

• Under 23 feet (7 meters) - side lights and a stern light, possible. If these lights can not be displayed a light must be kept at hand to help avoid a collision. This can be a bright flashlight.
• Over 23 feet - Side lights visible to one nautical mile and stern light visible for two.
• Vessels under 65 feet may combine both sidelights into a single lantern on the bow.
• May show a tricolor light on the masthead instead of sidelights and a stern light. It's one or the other though, do not show these lights at the same time .
• Masthead light must be visible for three nautical miles, all other lights must have a two nautical mile visibility.
• Side lights must be separated.
• May not show a masthead tricolor light.
• Masthead light must have five nautical mile visibility, all other lights must be visible for two nautical miles.
• Optional masthead lights - any vessel under sail may display a red light over a green light at the masthead with sidelights and stern light. The red over green may NOT be displayed with a masthead tricolor light. It's one set or the other.

Lights When Motoring

For all navigational purposes a sailboat under power is considered a power boat. This includes motor sailing - if the engine is on and providing propulsion you are on a power boat, even if the sails are up . This applies to navigation lighting, sound signals in fog and limited visibility, and rights of way.

Sailboats under 50 meters under power need to show:

• A masthead light
• Stern light

A power-driven vessel under 23 feet (7 meters) that does not exceed seven knots of speed may display an all around white light, though sidelights should be used if available.

The USCG has published its own "Rules of the Road" that are based on the COLREGS. In addition, it has rules for the "Inland Waterways" for rivers, inland lakes and the Great Lakes.

The good news is this has no impact on what you have to do with your own boat.

They mostly relate to lighting changes on towed vessels like barges and tugs. For example, a vessel towing or pushing another vessel in the ocean under COLREGS shows two masthead lights, sidelights and a stern light, whereas in Inland Waterways the towing or pushing vessel displays two yellow towing lights instead of a white stern light.

If you sail on lakes, rivers or the Great Lakes where towed commercial traffic is common you should learn the inland lights, but coastal or ocean sailors will never see these.

When you anchor outside a designated mooring field, you should display an all around white light at the masthead or as high in the boat as practical.

If your boat is large and has a very tall mast, you may wish to display another light closer to the waterline. Boats approaching in the dark may not see a light on a mast sixty or seventy feet in the air when they are close to your boat.

We use a simple garden path light on our stern when we anchor, left in a rod holder or flag socket. It comes on automatically at dusk and is a cheap and easy way to be more visible. There is no specific rule stating you can not display more lights than required, or the nature of any lights beyond the required all around light.

The COLREGS also specify that a round black "daymark" should be displayed in the rigging of any vessel at anchor. Very few small vessels observe this, however it is the correct display for a vessel in an anchorage.

If you tie to a mooring in a marked mooring area you are not required to display anchor lights, but there is no harm in doing so.

The other important reason to know your lights is to figure out what's going on around you at night. The water may be ablaze with white, red, green and other lights at night and they are your first key to avoiding collisions and problems.

All combinations of lights for fishing boats, commercial vessels, and so on are outside this post‘s scope. The odds are small you will encounter a submarine, seaplane or hovercraft at night, but there are regulations regarding specific lighting for each of those vessels!

There are a few fundamentals to help you figure out what that is you see on the horizon, which way it is going, and whether it is a danger to you.

Port Wine is Red

The fundamental rule is that red sidelights will ALWAYS be on the port side of a vessel, and green lights will always be on starboard. However, some vessels can use all around red and green lights for other purposes, though those will be higher than sidelights.

The light‘s on a ship is not important, some large tankers and freighters will have their sidelights far aft and put them on the superstructure for better visibility. It is not safe to assume that sidelights you can see are on the bow of large vessels .

When you can see the color, you know which way the bow is pointing. If it's red, it's pointing more or less to the left and will travel in that direction. A green light shows it is heading more or less to your right.

If you can see the red and green lights at the same time, you are looking directly at the bow of the vessel. When you are far away, this isn‘t as alarming as if you are close crossing. Seeing red and green lights together on a vessel is something you never want to see for long.

Be aware of red and green lights used in combination with other red, green and white lights. These may not be running lights and could have other significance.

Tankers, Freighters and Large Ships

Tankers, freighters and large ships will have side lights, a stern light and a masthead light. In addition, on vessels over 50 meters there will be a second masthead light further aft and higher than the forward light. The masthead light positions are a better tipoff to the bow direction and how far from the bow the sidelights might be. Remember - on a large vessel the sidelights may not be at the bow or even close to it.

USCG Inland Rules allow for a second all-around white light on large vessels on the Great Lakes instead of a second masthead light.

Fishing Boats

Fishing boats engaged in fishing will have more complex light displays. When they aren't fishing, they will show lights like any power vessel, but Rule 26 spells out light combinations that vary by the fishing activity being done. In general:

• Boats which are Trawling but not making headway will display a green all-around light over a white all-around light , and a masthead light aft of these lights. Boats making headway while trawling will show these lights, plus sidelights and a stern light.
• A vessel fishing other than trawling will show a red all-around light over a white all-around light . When making way they will also show sidelights and a stern light.
• If a vessel has gear more than 150 meters away from the boat, it will show a second all around light in the direction of the gear. The best rule is to give fishing boats as wide a berth as you can at night. They're easy to pick out if you check the top light configurations but their course may be difficult to predict.

Towing and Pushing

Towed vessels can be the most dangerous to cross, but they have the most lights to tell you what is happening. Refer to COLREGS or the USCG Rules of the Road Rule 24 for all combinations You can pick a tow/push vessel out with the following lights:

• Two or three masthead lights in a vertical line. Three masthead lights shows a tow over 200 meters. Additional masthead lights may show for larger tow vessels.
• A towing light (yellow light with the same characteristics as a stern light) directly above the stern light.
• The will also have side lights and a stern light.
• The towed vessel will show sidelights and a stern light. Lighting may vary under USCG inland rules, where towing lights may replace stern lights. Learn these differences if this is your regular cruising ground. If you think there is a tow ahead of you, always go well behind the aft most set of lights. Never go between a tow and avoid crossing ahead if possible as it may restrict their maneuverability.

Special Situations

There are several rare situations you may encounter. As a general rule, if there are a lot of lights and you don't understand them look for the sidelights on a moving vessel. If you can find them and figure out the direction it is moving, it makes the vessel easier to avoid. Stay well clear of lights you do not understand if you can avoid them without risk.

Most of these signals are used by larger, commercial vessels and you will not need them.

They use these light combinations with other light combinations. For example a towing vessel may also be restricted in maneuverability, and a vessel constrained by draft will show running lights if moving.

• Not Under Command - two all around red lights in a single line
• Restricted in Ability to Maneuver - red, white then red in a single line
• Constrained by draft - three all around red lights

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• Boat Safety Equipment

Navigation Lights on Sailing Yachts and Motor Boats

Navigation lights ensure the safety of everyone at sea. The Convention on the International Regulations for Preventing Collisions at Sea (IMO COLREG 72) precisely sets out the guidelines for navigation lights, i.e., displaying lights, their range (distance from which the light is visible), as well as how they should be constructed and assembled. Our guide is of interest to sailors and sports boats enthusiasts with boats up to 20 m in length.

Regulations and official certifications:

When must navigation lights be displayed, what are the regulations concerning the use of navigation lights at sea, how do i know that my lights are eu-compliant, what is a ce mark, how are navigation lights defined, minimum range of navigation lights:.

• From what distance must lights be visible?
• What lights are required for my boat?

What lights must be displayed on a sailboat or rowing boat with a motor?

What lights should i exhibit when at anchor, what lights should be displayed to show that a vessel is unable to manoeuvre.

• How do I indicate that my vessel has run aground?

Navigation lights – Conventional and LED:

What distinguishes led from conventional navigation lights.

• Replacement bulbs for conventional & LED lights

What are the advantages of LED navigation lights?

Switching from conventional to led navigation lights.

According to COLREGs part C, rule 20), navigation lights must always be used on board from sunset to sunrise or during the day if visibility is poor.

Please refer to the German Traffic Regulations for Navigable Maritime Waterways , §8 -10 and Preventing Collisions at Sea. Part C - Lights and Shapes. rules 20 - 31, and annexes I 1. - 14 for the exact wording.

NOTE: Vessels that are authorised to fly the German flag are generally only permitted to use approved navigation lights and sound signalling devices.

EU approval can be identified via the wheel mark symbol and the notified body number. BSH approved navigation lights (previously DHI) are marked with a model number (e.g., BSH/00/01/90).

However, even older lights with DHI approval that have already been installed maintain their approval, despite the changes made by the BSH.

In addition to the wheel mark symbol and German BSH approval, some lights are also approved by other countries, such as RINA (Registro Italiano Navale), MCA (Maritime and Coastguard Agency) and the USCG (United States Coast Guard). These are now recognised, provided the approval comes from the national approval body recognised in the country of origin.

National bodies whose accreditation is currently recognised in Germany:

The wheel mark symbol indicates approval of the Marine Equipment Directive (MED). This approval is valid for all EU member states, both for commercial vessels and recreational shipping.

0098 = Notified Body number (here 0098 = Germanischer Lloyd in Hamburg) 18 = year in which the mark is affixed, here 2018

• A CE mark is a symbol that must be affixed to a product by the manufacturer before it is sold on the European market. It indicates that the manufacturer is aware of the specific requirements for the product in question and that it fulfils the requirements of relevant European product directives. A CE mark does not supersede approval according to collision prevention regulations.
• Navigation lights are defined in detail by the International Maritime Organization (IMO), according to the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs) Convention on the International Regulations for Preventing Collisions at Sea, 1972), in sections C and D. The following rules apply:

Which navigation lights are required on board according to IMO COL REG?

Definitions according to the 1972 International Regulations for Prevention of Collisions at Sea (COL REG 72):

1. Side lights for starboard and port

A green light on the starboard side and a red light on the port side, which shine from dead ahead in an arc of 112.5° aft to a point 22.5° abaft the beam (behind the beam) on either side of the vessel. On ships of less than 20 metres in length, the two individual sidelights may be replaced by a dual-colour combined light. This must be centrally located on the bow and stern axis.

2. Stern light

A white light mounted as close to the stern as possible and shines dead ahead in an arc of 135° (67.5° to each side). The mounting height should be aligned to the height of the side lights and should never be higher.

3. Three-colour light for sailing vessels (sailing lights)

On sail boats up to a length of 20 m, the side light and stern light can be combined into one three-colour light mounted on top of the mast. However, as soon as the sail boat's motor is engaged, the use of a three-colour light is no longer permitted. The rules for motor-powered vessels then apply.

4. Mast-head light

A white light placed over the centre line of the vessel and shines dead ahead in an arc of 225° (from straight ahead up to 22.5° more aft than crosswise to each side). The mounting height should be at least 1 m higher than the side lights. In the past, the mast-head light was also referred to as a steam boat light or steamer light, as it is only seen on ships that operate under engine power.

5. Signal light or all-round light

A light that shines in a complete circle of 360°. It may emit white, red or green light, depending on use. Examples of use: All sailboats and motorboats at anchor must exhibit a white anchor light . Ships over 12m in length must, if necessary, display vessel-in-distress lights (two red signal lights) placed at a vertical distance of at least 12 m. The distance between such lights must not exceed 1 m.

From what distance must navigation lights be visible?

The range indicates the distance from which the light can be seen. The minimum ranges of navigation lights are defined according to ship size as follows::

Best-seller Hella marine

Note: When sailing boats are powered by a motor, the rules for motorboats apply and not for sailboats. The tricolour light may then no longer be displayed.

Displaying lights for sailboats up to 20 m

1 x red port side light

1 x green starboard light

1 x stern light

Also allowed:

1 x red all-round light on or near the mast top

1 x green all-round light on or near the mast top

1 x 3-colour light

Sailing vessels under 7 m (dinghies or small sports boats)

If, due to their design, no modern lights can be fitted, sailing vessels under 7 m in length and vessels being rowed must always carry an electric torch or lantern showing a white light, ready to exhibit in sufficient time to prevent a collision.

1 x Electric light or a torch with white light

Motorised vessels over 12 m

Lights used must be either / or:

1 x white masthead light fore

1 x dual colour light

Motorised vessels under 12 m

Alternatively, motorised vessels under 12 m can exhibit the following lights:

1 x white all-round light

Motorised vessels under 7 m and 7 knots maximum speed (small motor boats, dinghies or inflatables):

Motorised vehicles under 7 metres and with a maximum speed of no more than 7 knots can display the following navigation lights: all-round lights, portside and starboard lights.

The following applies in accordance with German Traffic Regulations for Navigable Maritime Waterways (SeeSchStrO): If, due to their design, no lights can be displayed (e.g., dinghies), sailing vessels under 7 m in length and 7 knots maximum speed must carry an electric hand-held spotlight or a torch to prevent collisions in the dark.

Left: 1 x white all-round light, 1 x red port side light, 1 x green starboard light

Right: 1 x hand-held spotlight or torch

Best-seller Aqua Signal Conventional

Best-seller Aqua Signal LED

Provided no engine power is used, the rules for sailboats apply. Motor-sailing vessels must display a large black cone pointing downwards when sailing during the day or at good light.

For vessels travelling under sail or at rudder during darkness or at reduced visibility, the rules for carrying lights for motorised boats automatically apply. This then depends on the length of the boat.

By day with a black cone, tip pointing downwards.

Visual signalling equipment

Torches & Spotlights

How must navigation lights be mounted on board?

Navigation lights must be securely mounted perpendicular to the waterline. Mast-head lights and stern lights should both be placed above the keel line.

At anchor during daylight? This must be displayed with a black anchor ball.

If the vessel is anchored outside of an area of water known by the River and Shipping Police Authority as an anchorage and berth for small vessels, this must be indicated as follows:

A black ball by day, 1 x white all-round light at night

Marker Lights

If your boat is unable to manoeuvre*, this should be indicated as follows:

Stationary: 2 x red all-round light, 2 x black ball, one below the other (during the day)

Moving: 1 x red port side light, 1 x green starboard light, 1 x white stern light

* A vessel is described as if, due to exceptional circumstances (e.g., rudder failure or engine malfunction), it cannot manoeuvre as prescribed and therefore cannot avoid another vessel.

How do I indicate correctly that my sailboat or motorboat has run aground?

If your boat has run aground, this should be indicated as follows:

2 x red all-round light, 1 x white all-round light, 3 x black ball, one below the other (during the day)

Manufacturers that specialise in navigation lights such as Aqua Signal or Hella Marine supply a wide range of internationally approved navigation lights which work with conventional (with BSH bulb) or with permanently installed light-emitting semiconductor components (LEDs). The bulbs required for operation are an integral part of the approval. Replacement bulbs must also be certified so that approval / your insurance protection is guaranteed. Ships under 20 m: Stern and anchor lights require BSH-approved light bulbs with 10 watts, all other navigation lights 25 watts.

All series listed above with BAY15d sockets could alternatively be operated with a high-Power LED . The big advantage in doing so is that the LED is suitable for multiple voltages (10-30 V) and consumes just 3 watts during operation. Since the light colour, range of light or beam angle can vary depending on the housing, this light is NOT yet internationally approved.

Spare Bulbs - Conventional & LED

Energy consumption on sailing ships is, as ever, a topic of significant interest. This is especially true for blue-water sailors who like to sail longer distances at a stretch. The arguments for converting to LED technology are as follows:

• High energy savings due to the low power consumption
• Long lifespan (over 10,000 hours)
• MultivoltTM technology (10-30V) with greater tolerance to voltage peaks
• Compact and light housing constructions
• Waterproofed, hermetically sealed housings
• Maintenance free

When switching completely from conventional navigation lights to LED lights, lights with the BSH seal of approval / EU wheel mark meet all the requirements in terms of light colour (no risk of blue tint), range of light and beam angle, and that you are travelling in accordance with KVR.

Navigation lights with LED technology

Replacing your navigation lights is often easy to do as manufacturers usually use the same mounting points for LED lights or have an adapter plate for further use of existing drill holes:

Adapter plate

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Navigation Lights at Night

by Harbor Sailboats | Dec 4, 2020 | Blog | 1 comment

Great article! Boat lights are the means of communication between sailing vessels. These lights are also a tool to let my presence known even from a distance.

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Ultimate Guide To Marine Navigation Lighting

If you drive a car or even ride a bicycle, you might be well aware of the necessity of lighting systems (though in the second case the word ‘system’ doesn’t quite apply) for the safety of you and the people around you. The thing applies just as well for ships. But since they are much larger than a car, the lighting system or navigation lights on ships is a little bit more complicated as well. Marine navigation lighting is also one of the most critical aspects of nautical studies.

It is mandatory for boats of all sizes to have a navigation system . This is to make sure that the chances of any significant accident are minimized. The United States introduced the system in 1838, and the United Kingdom followed suit. Before being internationally adopted in 1897 suitable guidelines were established by the International Maritime Conference which was established in 1889. Three colors were chosen that were to be used for the light colors. They were red, green and white.  This was based on a set of rules specified by the US and are followed around the world to this date.

This article discusses the different rules and regulations of using navigation lights, their importance, and also some basic marine navigation lighting systems along with their positions and ranges.

Marine Navigational Lights, Rules and Regulations

A standard pattern of marine navigation lighting is followed for the identification of both the vessel as well as the IALA buoyage system at night. If you are required to move from sea to a channel you need to have a list of all the IALA as well as the other fixed navigational lights that are visible on entering the channel. This includes distant lighthouses as well.

If you also make a note of the inland features like the radio and television transmitter masts it will benefit you because they act as good navigational aids due to their height and warning lights.

The helmsman should not be using any bright light source in the cockpit area and should rather take the aid of red lights and very dim white lights in the galley and navigation area. This is because he needs to preserve his night vision so that he can accurately interpret both the buoyage marine navigation lights as well as the boat navigation lights of other vessels.

The nautical almanacs contain the details of each and every visible maritime light signal coming from navigational markers that are both inside and outside the channel.

All the details about any particular light can be found in a published list or on a marine navigational lights chart: its color, period, and in some cases even the elevation and range of the beacon. Use the chart to keep a tag on the lights you are passing by putting a tick mark on the lights that you are about to pass and as the boat sails past, the tick is checked.

You will get two visual clues to figure out how far you are away from a buoy. The light will elevate from the horizon at 0.5 nm and at about 200m, the light will reflect on the surface.

Position of Boat Navigation Lights

Most of the variations that can be found in the different vessels can be read about in most almanacs. At the very basic level, a vessel needs to show a red light to port and green light to starboard. Depending on the size of the vessel, one or more colored or white lights are used as well.

For vessels that are 12 ft in length or shorter, the navigation lights must be visible from a range of one nautical mile and for the ones that are longer than 12 meters the required visibility range is 2 nautical miles.  From 5 degrees above to 5 degrees below the horizontal happens to be the required minimum intensity in a vertical sector.

International Navigation Rules state that the boat navigation lights should be placed above the uppermost continuous deck. In case separate fixtures are used for the red and green sidelights, the masthead or all-round white light is placed as close as possible to the vessel’s fore and aft centerline. The masthead or all-around light needs to be positioned at least 1 m or 3.3 ft above the sidelights.

Following are the basic positions of navigational lights. We will discuss the same in greater detail ahead.

Also read: What Is A Marine Sextant?

Boat Navigation Light Regulations

Several rules and specifications are related to the type, size, layout, arc, and distance of visibility of boat navigation lights used by all vessel types which are collectively known as the International Regulations for Preventing Collisions at Sea or COLREGs . The navigational lights used are known as ‘COLREG lights and shapes. A boat might be anchored or underway, under sail or power, or fishing or trawling. These various situations can be communicated through multiple combinations of boat navigational lights.

In addition to the primary navigation lights, vessels may also display one or more steaming lights. These lights are very useful for it gives details about the various aspects of the ship like whether it is in the sail or under power, the direction in which it is going and, in some cases, even the size of the vessel. If a ship is engaged in a specific task that might involve certain restrictions, that too can be indicated with some extra boat lights.

Always maintain the lighting system and display the correct navigation light combination to make other vessels in the vicinity aware of your course and state as to whether your vessel is under power or not. If you follow this a considerable amount lowers the chances of a collision. Here is a list that you might use to familiarise yourself with the basics of the lighting system.

• Basic Navigation Light White Light : Small dinghies that are 7m or less in size are required to carry a torch having a white light that can be flashed when needed.
• All-Round White Light: An all-round white light is expected to be displayed by a small boat, up to 7ft long that is under power and can go beyond 7 knots of speed. This light must be visible at an angle of 360 degrees and from two miles away. An all-around white light is also used when the boat or vessel is at anchor but not at a designated anchoring area. This is to make sure that the ship is visible to all the nearby ships to avoid any accidents.
• Stern and Combined Side Lights : A stern light is a white light that is installed at the end of a boat.  A vessel that is over 7 m or 23 ft in length is expected to show red and green sidelights when sailing. Each of these lights needs to cover an arc of 112.5°. The sidelights may be combined in one lantern at the bow when below 25 m or 65 ft. The white stern light can be seen over an arc of 135°. These lights need to be visible from a distance of a mile and need to be placed 39 inches below all white lights for boats of lengths equal to or less than 12 ft.
• Masthead Light : A combination of sidelight and stern light in a tricolor combination may be used sailing yachts of heights 20 m or lower.  A masthead light is required by vessels of lengths between 39.4 ft and 65.6 ft. It is placed in the masthead whose height provides excellent visibility. Still, stern lights and sidelights should be fitted separately in case of or use under power along with steaming light. This kind of light needs to be visible across an angle of 225 degrees and from a minimum distance of 2 miles.
• Separate Lights : The displaying of the tricolor masthead light is not allowed in the case of yachts that are longer than 20 m or 65 ft. Instead, they use them separately. Often on large sailing vessels, these all-around, red over green lights are present. These red and green sidelights need to be visible from a distance of one mile and across an angle of 112.5 degrees.
• Steaming Lights Combined Lights : A combination of the masthead and stern light are used in the case of power crafts that are less than 20 m or 65 ft in length. The arrangement is present at the bow.
• Single Steaming Light : Visible over a 225 degrees arc, a masthead steaming light is used by power-driven vessels that are up to 50 m or 160 ft long. Separate stern lights and sidelights are used in case of a length exceeding 20 m or 65 ft.
• Two Steaming Lights: Power-driven vessels that span over 50 m or 160 ft in length display two masthead steaming lights. The forward light placed lower than the aft light with both of them being visible over an arc of 225° with the sidelights and separate stern light.

The area of the nautical lighting system is a precise business and requires some amount of study and a good deal of responsibility. It is because its application forms a core element in safe marine navigation.

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Masthead light

The masthead light is a white, forward-facing light that must be displayed by boats at night when operating under motor power. This light is often referred to as the " steaming light " (despite the fact that very few boats actually use steam power). The light must shine forward over an arc of 225 degrees. Like all navigation lights, the masthead light must be on between sunset and sunrise.

On sailboats, this masthead light is not at the top of the mast, as the name seems to imply. The light is usually placed about 2/3 of the way up the mast. The masthead light on a sailboat should not be confused with the tricolor light or the anchor light , which are both located at the top of the mast.

On vessels under 12m, the masthead light and sternlight can be combined into a single all-round white light.

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Steaming light

• Robert Melotti
• January 5, 2010

The white, forward-showing light carried by a powered vessel by night or in bad visibility. In the Collision Regulations this is called a ‘Masthead Light’ (though not required to be carried at the masthead) and it must show from dead ahead to 22.5 degrees abaft the beam on each side. A vessel of less than fifty metres length may show one such light: those longer must show another similar light farther aft and higher up. A boat under sail does not show a forward white light.

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Boat navigation lights – anchor, steaming, side, stern lights.

Collision requirements (colregs) require you have certain lights on during low visibility times like at night or in a fog. The running lights change based on if you are under power as well. Under sail, a boat is allowed to conserve energy by running a minimal set of lighting. The lights involved are the anchor, steaming, side, and stern. Masthead light is an ambiguous term I will avoid.

Anchor The anchor light lies at the top of the mast or tallest structure. The light radiates all around, 360 degrees. For a boat at anchor, the light is white. For a sailboat under sail, the light is tri-color. Under either scenario, the anchor light is the only light. Under power, a white all around anchor light combines with side lights for navigation.

Steaming The steaming light is halfway up the mast or tallest structure. She radiates white light forward 225 degrees. She does not radiate any colors. Use the steaming light solely under power combined with colored side lights and a stern white 135 degree light.

Side Side lights are a pair on each side towards the bow. Port is red, starboard green. Red means stop for a viewing vessel and yield to the red lighted vessel. You have the right of way aboard the red sighted boat. Green means the opposite. The viewing vessel has right of way, and the showing boat must yield. Under power, use the side lights with either a all-around anchor white light or the combination 225 degree steaming/135 degree stern whites.

Stern The stern light is at deck level towards the boat’s transom. She is a white, 135 degree light. Under power, use her in combination with side lights and the steaming forward, 225 degree, white light. As a final twist under sail, a stern light combines with two anchor lights (one green, one red). The red light must be higher on the mast than the green light.

Conclusion Navigation lights include the anchor, steaming, side, and stern lights. Depending on whether you are under power or sail or anchored, a boat shows different combinations of these lights. Generally, in each situation you need lights showing for all 360 degrees which penetrate 2 miles away. And when navigating, red means stop. Yield to a vessel showing red. No matter what be careful. Be a defensive sailor making sure you avoid peril.

Boat US provides the great animations below.

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One Reply to “Boat Navigation Lights – Anchor, Steaming, Side, Stern Lights”

Aye it’s Fox Axel the pirate. I ave a lession for all ye two bit slim witted dogs. Me sailed Sea Belle silently along in starry darkness. Me wast in the Bermuda Triangle. In me good eye I saw a red light in the distance. Avast, a star. Neh, the redness grew brighter and moved along the horizon. Me thought now she must be a UFO! Me lurched down from the poop deck below for me pirate spyglass.

When I came up the red light was close to starboard. Me heard a wild wench, swab voices. Begad! We pirates never bother with navigation lights. I could not swerve or tack. The swabs stuck me athwart ship gashing a hole in Sea Belle. Me sunk down to the briny deep. Know what navigation lights are so ye can plunder fools. And put lights on when ye are not plundering.

Arghh, after me sunk into the briny deep. The swarthy swabs fished me out. When dey got me on deck, they released somehow that me was a pirate although I hid me hook under me cloak. I cursed dem for running into me, the bilge rats and would have made dem walk a plank iffen dey had one on hand. Whilst in shock at seeing me in me full pirate regalia, I managed to grab the wee lad and ransom him for some grub and grog. Then, I started to charm them with me pirate talk and wild seafaring ways, and dey all agreed to join me on the high seas. Iffen anybody else dats wishes to join me fleet who gots some pirate in im, find me on Monkey Isle.

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Mast head light confusion

Here is a question from a Student who posted it on Disqus. I felt it was important enough to post out here for public. Displaying correct lights on boats is important.

Could you please provide more of an explanation for the following: Although ‘steaming light’ is used extensively, this does not have a definition within the IRPCS [International Regulations for Prevention of Collisions at Sea], the correct definition being a masthead light.

If the tri-colour light can replace the stern and red/green pulpit light on a sailboat how can it be unacceptable to use the tri-colour light with mast head light? If you are under power you of course need your steaming light/ mast head light illuminated. So if you don’t have pulpit or stern lights aboard as you are using a tri colour light how can you do this?

Agreed – lights can be confusing at the onset. In this particular topic, sailors tend to get confused because they think  a mast is only on a sailboat. But, a mast head light is also used (and defined for use) on power boats. Take a look at this image shown in the rules. It shows a power driven vessel longer than 50 meters using two mast head lights.

A large Power vessel displaying two mast head lights.

Here is the definition of a mast head light in the rules:

(a) “Masthead light” means a white light placed over the fore and aft centerline of the vessel showing an unbroken light over an arc of the horizon of 225 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on either side of the vessel.

Note also that is does not say the light must be at the top of the mast.

For sailboats, a tricolored light is a light described by rule 25(b) in USCG Nav Rules. It is at or near the top of the mast and is for sailing vessels less than 20 meters in length. It is an optional alternative to having the lights down on the hull or pulpits. It faces a white light to the aft 135 degrees plus red from directly forward around to port 112.5 degrees and a green light directly forward and around to starboard 112.5 degrees. This makes up 360 degrees and meets the requirement for a sailboat sailing. When the sailboat turns on it’s engines it must also in addition to the white, red and green above, display a white light 225 degrees facing forward. You can name this light what ever you like but it must exist. These white “mast head” lights are also defined by the distance they must be seen by – it does not mean they have to be at the top of the mast. On power vessels they are typically at the top of the mast because that is what the mast is for.

Here is a sailing vessel under sail only with a tricolored light

Tri-colored lights on a sailboat

On a sailboat less than 50 meters in length, a mast head light (white under power light) can be just “up the mast” anywhere. It’s not part of the tri color. It is white and faces forward 225 degrees and is to be used when the sailboat is under power. You also might be confusing the term mast head light with the two all around red and green lights at the top of the mast. These are not mast head lights. They can be used in addition to the hull or pulpit mounted red green and white. The rules prevent a top of the mast tricolored light AND the two all around red and green at the top of the mast. This would create confusion and may be your source of confusion. i.e it is unacceptable to use the tricolored and two all around red and green lights. Again the mast head is white 225 deg forward facing to be used under power only.

Here is a vessel with the two all around red and green lights.

The Vessel sailing “on starboard” is utilizing the optional two all around red and green lights.

Here are the rules as stated: Rule 25 – Sailing Vessels Underway and Vessels Under Oars

(a) A sailing vessel underway shall exhibit:

(i) sidelights; (ii) a stern light

(b) In a sailing vessel of less than 20 meters in length, the lights prescribed in Rule 25(a) may be combined in one lantern carried at or near the top of the mast where it can best be seen.  [note this is the tricolored light]

(c) A sailing vessel underway may, in addition to the lights prescribed in Rule 25(a), exhibit at or near the top of the mast, where they can best be seen, two all-round lights in a vertical line, the upper being red and the lower green, but these lights shall not be exhibited in conjunction with the combined lantern permitted by Rule 25(b).

I hope that helps.

I highly recommend that you complete our Navigation Rules Course . It is free for everyone.

International Rules for Prevention of Collision at Sea FREE Sailing Course

We also have a Paper Book that you should order and keep on your boat for reference.

The book is a stand alone excellent explanation of the Rules of the Nautical road and is a good and quick easy read. It has additional really cool features. Through out the book you will see QR Codes. When you scan any QR code with your mobile device, the book element comes alive and shows you animations and videos.

To get a QR Reader – 

For Android

Order the International Rules of Prevention of Collision at Sea Book from Amazon.

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CG regs for Steaming Light on 32 ft sailboat

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My 15 year old Hunter 326 does not have a steaming light but does have side and stern lights...as well as an anchor light. I am under the impression a sailboat this size does not require the steaming lite....previous owners obviously thought so too. Question is if I am under power at night should I use the anchor lite at the top of mast as a steaming lite?  

Did it have a "Steaming light" previously..?  

I'm no expert, but with the addition of the anchor light, you would be showing two white lights when viewed from astern. My 40 year old Bristol has a steaming light and I use it. Ken  

I believe, if the boat is under 12 meters (39ish feet) a single all around white light can be substituted for the forward facing masthead (steaming) and aft facing stern lights. If you think about it, when removing the forward and aft facing white lights, the all around is going to look the same from every angle.  

If you put in the query you will find that you are fine ! Regs require steaming on 20m and over !  

CarbonSink is correct. Being rather confusing to anyone overtaking you, I should think that puts the burden on you to make sure the overtaking vessel is not hampered. Rather a daunting thought, should that vessel be running at 15 to 20 knots, or more.  

You would simply extinguish the stern light, to avoid confusion. A stern light is not required, I believe, if you use an all around white light, for a boat of that size.  

Minnewaska said: You would simply extinguish the stern light.. Click to expand...

Your boat would have been built with running lights (sidelights and a sternlight) and a switched steaming light. Hunter often has a rocker switch - when set to power the steaming light is on, when set to sail it is off. Trying to use an an anchor light in place would be an all around bad idea. You would need to switch the stern light so you could turn it on when under sail, with the anchor light turned off.. Finally in close quarters in a crowded harbor, a running light located at the top of the mast is asking for trouble...it might meet a strict reading of the rules, but the insurance companies will give you 100% of fault just the same. Sent from my SM-G965U using Tapatalk  

sailingfool said: .....Finally in close quarters in a crowded harbor, a running light located at the top of the mast is asking for trouble...it might meet a strict reading of the rules, but the insurance companies will give you 100% of fault just the same..... Click to expand...

Interesting discussion. I would have bet money a masthead light (the term "steaming light" doesn't appear in ColRegs) was required on a boat that size, but as usual Minnewaska is correct that a vessel under 12 Meters (~39') can show an all around white plus side lights. I do believe the Regs require one or the other and that displaying an all around white at the masthead and a stern light would not be legal as it would create the impression of a head on situation with a large vessel (upper and lower masthead lights) with no side lights. If the boat was built to this reg, I would expect the stern light would be on its own switch to allow stern and sides under sail and all around white plus sides under power?  

I believe you have two choices Under Power: Under 12 meters and under 7 knots, you can show an all around white light. or You can display an all around white light and side-lights. ( with no stern-light) How you accomplish that with switching, is up to you.  

COLRegs specifies requirements that a vessel operator must meet, but it does not attempt to prohibit every possible dumb but conforming idea that a creative human might think of. No regulations limited to a few hundred pages can do that. Should the PO follow the woeful advice offered here, consider his discussion with his insurance company following the accident: Insurance: the other boat says they hit you because your stern light was out and they did not see you. PO: Sure, I turned the stern light off, but I had my anchor light on instead. Insurance: Why would you do that? PO: Because ColRegs doesn't say that I can't do it? Insurance: Are you kidding? You get the 100% fault. Remember accidents can involve more than just boat damage, people get injured also. Perhaps another thread on the question whether the PO's action in the described situation would qualify as willful negligence in a criminal case. See Fatal boat crash: Wrong man charged? | abc7news.com  

Insurance: the other boat says they hit you because your stern light was out and they did not see you. OP: Sure, I turned the stern light off, but I had my all-around white light on instead. I also had my sidelights on. Insurance: Why would you do that? OP: Because ColRegs Rule 23 (d)(i) reads as follows: "A power-driven vessel of less than 12 meters in length may in lieu of the lights prescribed in Rule 23(a) exhibit an all-round white light and sidelights." I was under power and my Hunter 326 is 32 feet in length, which is less than 12 meters. https://www.navcen.uscg.gov/?pageName=NavRulesAmalgamated#rule23 Edit: fixed cut and paste and added link  

If it were me, I'd have a Steaming Light installed. However, Steaming light, anchor light or stern light, not much is going to save someone from an idiot going 50 miles an hour up your butt.  

Understand that Hunter shipped the boat with an installed steaming light. The OP just needs to repair it, or install a replacement fixture it the OEM has been ripped from the mast. Sent from my SM-G965U using Tapatalk  

My understanding is that the masthead light with sidelights is legal. However, as some have said, I was never comfortable having the stern light off for fear of being hit from astern by someone not noticing the light at the top of the mast. My solution was a masthead light with separate fore and after sectors. At anchor, both on, steaming at night, only front on (with other nav lights unchanged).  

We, who sort of understand running lights and what they are supposed to symbolize (which puts us in the minority after dark, I'm pretty sure), are getting all wrapped around the axle about what is and isn't a 20-point white light showing forward when our sailboat is under power. I have, on small no-electricity sailboats when out after dark, used battery-powered red-green bow light combo forward, and a dive light with a taped-on "dome" made out of wax paper or other translucent stuff, and lashed onto the top of the tiller or rudder, as a sort-of stern light. When little outboard gets put into gear, I will typically add a similar jury-rig flashlight white light onto the mast, jammed under a tight spinny or jib halyard, as an "I'm under power" forward (steaming) light. None of these are visible three or five miles, more like a mile I would think. But it's something, I'm usually close to the harbor, and it's good practice. What's the point?? If I see just red and/or green, or both, somewhere ahead, I think "sailboat"! If I also see a white light higher up, but not atop Mount Everest, I think "powerboat"!! And if I see just a white light, I think "okay, some kind of boat, going away from me, or a small dinghy or whatever with a single white light. An anchor light way up on the masthead as a "steaming" light, at least at close quarters, looks weird to me. I wonder if it's a sailboat at anchor, or if I see red or green, if he's sailing and using the masthead light to see his telltales, or what? Or, is he anchored and forgot to kill the red/green? Or just confused about lights and figures "more is better"? It's easy to overthink, more so at night. True of more than just sailing ;-)  

I believe you are correct. We have a three way switch. Off; sailing w R/G and W stern light; steaming w R/G and all around masthead with stern light off. Of course, under 7 meters, we could be legal with a readily available lantern.  

Sail a lot at night. Nice to landfall the next island at daybreak. Also of course on passage. Something Capta said perks my interest. From the deck of my boat I can’t see another sailboats running lights once they’re a few miles off. If there’s a sea running they need to be even much closer. But if they have their masthead tricolor it’s rarely an issue. So coastal we use the deck lights but offshore the masthead. From what Capta says we may have this backwards. Now I figure ships will spot us on radar and AIS (if anyone’s looking) so issues of course and vog are moot. But rather the issue is small craft. A lot of cruisers may not have AIS or their radar may not be on. It’s them I want to see and want them to see me. Been with people who scan the 360o every 10 to 15minutes especially when offshore. Want to give them several chances to see me. I’ve had occasion to vhf call multiple times and finally get a response when doing a busy jump(Gorda-st.martin when it’s been awhile to get a window). We wanted to go to Marigot, they seemed to be heading for the Dutch side so we would cross. Finally saw a head peak out the companion way. He saw me then veered off for a bit allowing me to cross his bow without tacking or luffing until he passed which was gentlemanly. I was burdened being the overtaking vessel. We were both on port tack. Now his deck lights weren’t seen until we were close and even then were blinking. So think the tricolor may be safer overall in some circumstances.  

If you want to be seen by a particular nearby boat/tug/ship who's not that far away, a big bright flashlight shone onto your mainsail or jib and waved around, will be way more effective than any of your wonderfully correct running lights. Most vessel to vessel tangles at night are not caused by misapprehension of nav lights. Rather, it's by "*&%#, I never saw him"---/or/---" he never saw me"...  

Sidelights are red (port) and green (starboard) and shine from dead ahead to 112.5° aft on either side. Stern lights are white and shine aft and 67.5° forward on each side. (Thus, the sidelights and stern light create a full circle of light.) All-round lights are white and shine through 360°. Masthead lights are white and shine from 112.5° on the port side through dead ahead to 112.5° on the starboard side. They must be above the sidelights. Sailboats under power are considered powerboats. Sidelights may be combined into a single "bicolor" light. Powerboats less than 20m (65.7') in length need to show sidelights, a stern light and a masthead light. Power vessels less than 12m may show a single all-round light in lieu of the separate masthead and stern lights. Sailing vessels less than 20m in length need to show sidelights and a stern light. These may be combined into a bicolor light and stern light, or a single tricolor light at the top of the mast. Sailing vessels under 7m must have an electric torch or lantern available for collision avoidance. Oar-driven vessels can show either the sailboat lights, or use the electric torch/lantern option. When anchored outside a special anchorage, power and sail vessels under 20m must display an all-round light. Vessels under 7m are exempt, unless anchored in a narrow channel or anchorage, or where other vessels usually navigate. Sailboats with sails up during the day, but which are also under power, must fly a black "steaming cone," with its point downward, where it can be seen. When under power they must follow the rules of the road for powerboats. Notes Boats under power under 40' can substitute a single all-round light for separate stern and masthead lights Boats under 65'7" can substitute a single bi-color light for sidelights Sail boats under sail under 65'7" can substitute a tri-color light for separate sidelights and stern light. See our Anchor Ball Click to expand...

Keep a dive light in the cockpit to shine on the sails but mostly for checking trim. The shining on the sails bit is fine if you have nothing else to do and the other idiot is looking at your sail when you’re shing the light. I’m not going to be doing that for hours on end and often have other stuff to do. Nor am I going to wake someone up to do it. So don’t think that’s a practical answer except in certain limited circumstances. In the example above passed at least 1/2 dozen sailboats and was passed by another 1/2 dozen. Also several of those small tramps with the deployable ramps up front and two cruise ships. In those circumstances putting the spreader lights on briefly makes more sense. Light rules be damned become a fish boat for awhile and light up the world. Still like opinions on: When’s best to use your deck lights? When best to use the tricolor? BTW- get a steaming light. What’s legal and what’s wise are two different things. Same as what’s legal and what’s just.  

outbound said: In those circumstances putting the spreader lights on briefly makes more sense. Light rules be damned become a fish boat for awhile and light up the world. Click to expand...

I will add that the steaming light on the Hunter 36 that I used to teach on was at the very top of the mast, and shined through an arc of 225º. If one flicked on the anchor light, then the same fixture illuminated a 360º arc. I hated that setup because you couldn't see if either of these lights worked from the dock during daylight. I believe that the anchor light actually powered up two incandescent bulbs, thereby drawing twice the power when you were at anchor.  

This has been a rather... ...amazing "discussion". It's almost as bad as a stand on vs. law of tonnage discussion. Follow the rules or avoid the Salish Sea, please.  

I don't claim a ton of night sailing experience but the night experience I do have has been in the presence of a lot of other sailboats. For the most part I've witnessed deck level nav lights or masthead tri-color, properly displayed with judicious use of white light on the sails from time to time. I've also see a lot of dorked up stuff like sailing with the anchor light on presumably to illuminate a masthead fly. I've also seen careless handling of billion candlepower spotlights to illuminate telltales, but lighting up the cockpit of every other boat within 3/4's of a mile. In my experience the most difficult vessels to pick out nav lights I've ever encountered have been tugs and cruise ships that were displaying so many white lights on deck it took many minutes of observation with binos at night before being able to pick out the nav lights. In the case of the tug, I couldn't see the red or green until I was seeing both, fortunately at some distance and because he was changing course to exit the bay.  

PalmettoSailor said: I don't claim a ton of night sailing experience but the night experience I do have has been in the presence of a lot of other sailboats. For the most part I've witnessed deck level nav lights or masthead tri-color, properly displayed with judicious use of white light on the sails from time to time. I've also see a lot of dorked up stuff like sailing with the anchor light on presumably to illuminate a masthead fly. I've also seen careless handling of billion candlepower spotlights to illuminate telltales, but lighting up the cockpit of every other boat within 3/4's of a mile. In my experience the most difficult vessels to pick out nav lights I've ever encountered have been tugs and cruise ships that were displaying so many white lights on deck it took many minutes of observation with binos at night before being able to pick out the nav lights. In the case of the tug, I couldn't see the red or green until I was seeing both, fortunately at some distance and because he was changing course to exit the bay. Click to expand...

Not that it has too much to do with the discussion, but anytime I've been anchored in an area where I felt at all at risk of being run into at night, I would leave my foredeck and cockpit courtesy lights on in conjunction with the anchor light. Lit up the boat like a little floating city and made me worry a little less when woken up by the sounds of motors approaching.. LEDS are great...  

The " Rules" seem to have stood the test of time. 46 years, I believe that they're pretty well thought out.  

Your test of time is a test of enforcement, not law, morality, value or any other version of right and wrong. You can make smoking in a no smoking area a felony, if you have the enforcement.  

Class and type: 2nd gen Maersk Triple E class container ship Tonnage: 214,286 GT 206,000 DWT [1] Length: 399 m (1,309 ft) Beam: 58.6 m (192 ft) Draught: 16.5 m (54 ft) Depth: 33.20 m (108.9 ft) (deck edge to keel) Installed power: 2 × MAN 7 cylinders (total 70,604 horsepower (52,649 kW)) Propulsion: Two shafts, fixed pitch propellers Capacity: 20,568 TEU Click to expand...

MarkofSeaLife said: So, if *you* were updating the Colregs what would you think safest? Click to expand...

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LED Masthead Steaming Light

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Product Description

Marinebeam's NavLight™ Series 1 3NM USCG-Certified 225° Masthead (Steaming) Light.

These attractive and economical 225° white LED lights face forward on the boat's centerline, and are used to indicate that a vessel (up to 50 Meters in length) is underway and is power-driven. Used on motor-craft and sailboats under power.

Like all Marinebeam products, our LED navigation lights have our integrated internal Constant-Current chipset, so they can operate at voltages from 9-33VDC. This means they are great for both 12VDC and 24VDC applications. This also provides protection from over-voltage conditions, transient surges, and provides for consistent output and safety even at very low battery levels.

Our navigation lamps do not emit RF harmful interference, and are EMC certified to EN55022, EN61547, and EN60945 so they will not interfere with radios, sensitive electronics, or GPS signals. This lamp has 3NM visibility and has been certified to meet the USGC and ABYC A-16 standards for vessels up to 50 Meters (164 feet) in length. Includes two (2) stainless steel mounting screws, and 8' of duplex 18AWG tinned wiring to allow power connection to be below decks, if desirable.

Specifications:

• Voltage: 9-33VDC
• Power: 2 Watts
• Visibility: 3NM
• Housing Color: Black or White
• Output Color: White
• Ingress Protection: IP67 (fully sealed)
• Approvals: USCG 33CFR183.810, ABYC A-16, EMC EN55022, EN61547 & EN60945
• Dimensions:  3-7/16" (H) x 3-1/16" (W) x 2" (D)

Mounts using (2) vertically aligned screws 50mm apart - adopted by the new Perko NaviLED PRO for direct replacement.

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Masthead streaming lights.

Posted by James on 23rd Aug 2022

The light is well made and easy to install. Works great.

LED Masthead steaming light

Posted by John DeRuyter on 24th Jul 2021

Easy to install and high quality

Excellent Quality

Posted by john sockwell III on 24th Jul 2017

I have outfitted by boat with all lights from Marinebeam. Interior lighting as well as navigation lighting. No more replacing bulbs for me. The light output is excellent and the housings are well made.

Great LED Light

Posted by Pat on 26th Feb 2017

As with all products from Marinebeam this is well made and looks good. Brighter than we expected.

Recommended

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Five Oceans Combination Masthead and Deck Light, LED Masthead Deck Spreader Light, 12V, Vertical Mount for Sailboat - FO3837

Purchase options and add-ons, about this item.

• HIGH-PERFORMANCE LED: Masthead Light - Feature 14 Super Bright White LEDs. Deck Light - Feature a Super Bright MR16-12 LED G4 type. Working Voltage: 12V DC. Wattage: 0.5W Masthead Light, 1.5W Deck Light. Amperage Draw: 0.25A. LED Lifetime: 100,000 hours
• DURABLE MARINE GRADE MATERIALS: Design of Solid Marine Grade Polycarbonate Housing and Lens. The polycarbonate housing is shock-resistant, non-corrosive, non-magnetic, and seawater resistant. Waterproof: IP65
• EASY INSTALLATION: Flexible side mounting flaps allow vertical mounting on a wide range of masts. Mounting Procedure for Smaller Diameter Masts - Fit Up to 3 Inches Minimum Mast Wide, this will prevent an open gap in the sides of the masthead light portion of the fixture
• WIDE APPLICATION: This Light is designed to be wrapped around the front of the mast to light the deck and be the spreader light required at night. Meets the 2 NM Rule and it is recommended for Vessels up to 40 Feet
• MEASUREMENTS: 6 3/4 Inch (171mm) L, 6 1/2 Inch (165mm) H, 3/4 Inch (70mm) D. Pre-wired Red, Black, and White Cord, Certificate CE, and RoHS. Vertical Surface Mount. Mounting Hardware: 2 Pre-drilled Mounting Holes

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After so many years of providing service to sailors worldwide, we felt the need to develop a brand where we could combine our experience and passion for navigating the oceans. Our brand represents years of working with excellent suppliers, learning the customer's needs, knowing in-depth the market channels (from the physical store to e-commerce), and continuing to enjoy the journey which led us to create Five Oceans products.

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How did we get our start.

Based in Florida, USA, we are a company with more than 40 years of worldwide experience in the marine industry. Our experience, plus our boundless passion for the ocean and marine activities, led us to offer thousands of products for boat owners who need reliable products that are affordable and have premium quality.

Why do we love what we do?

We are the official sponsor of your passion. Today, we are one of the leaders in presence and innovation in the marine industry.

Why Five Oceans?

It represents the five oceans: Arctic, Pacific, Atlantic, Indian, and Southern.

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Product description, technical specifications, measurements & mounting.

Product information

Technical details, additional information, warranty & support, compare with similar items, looking for specific info, customer reviews.

Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.

Customers say

Customers like the performance, ease of installation, and value of the vehicle light assembly. For example, they mention that the lights work well, it's easy to wire up, and it'll be a cost-effective replacement for more expensive units. That said, some complain about the flexibility and screws. Opinions are mixed on quality.

AI-generated from the text of customer reviews

Customers like the performance of the vehicle light assembly. They mention that it works well, has no issues, and the lights are bright.

"Easy install and works just as they said . Brighter than I expected." Read more

"...This mast/deck light is not one of them.The lights do work and are bright. That's the positive...." Read more

"...The light DOESN'T WORK without a bulb ! Very poor Customer Service." Read more

"...I used a heat gun to bend the tabs to fit my mast and have not had any issues with it ...." Read more

Customers find the installation process of the vehicle light assembly to be easy. They mention that it's a good light, easy to wire up, and modestly bright.

"...the flaps to my mast...but that took 60 seconds per side and was very easy to do . Lights are bright. Only been up a week so we'll see how it lasts...." Read more

" Easy install and works just as they said. Brighter than I expected." Read more

"It's a good light, easy to wire up and modestly bright, but the lights are different color!..." Read more

" Easy to install " Read more

Customers appreciate the value of the vehicle light assembly. They mention it's a cost effective replacement for more expensive units and a cheap item that you can get for half the price under other.

"A big plus for having an LED deck light, and for being sold at a reasonable price compared to Aqua Signal which is the exact same thing as this for..." Read more

" Cost effective replacement for more expensive units..." Read more

" Great for the price ..." Read more

"This is a cheap item that you can get for half the price under other brands...." Read more

Customers are mixed about the quality of the vehicle light assembly. Some mention it's a high quality light, easy to wire up, and modestly bright. They say it'll be a great light for low electric consumption. However, others say it feels light and cheaply made. They also say the light has a questionable longevity.

"... Lights are bright . Only been up a week so we'll see how it lasts...." Read more

"...Draws a lot less current and very bright . The construction is pretty poor but so was the old one...." Read more

"Easy install and works just as they said. Brighter than I expected ." Read more

"...Only 3 stars though because (a) these things are so flimsy and cheaply made, and (b) it can not be made to fit smaller masts...." Read more

Customers are dissatisfied with the flexibility of the vehicle light assembly. They mention that the flanges to wrap the mast are not flexible enough, and the light housing does not flex enough to really conform to the mast. They also say that bending the ears was hard to do without distorting the body.

"...There was plenty of room on the C22. Bending the ears was really hard to do without distorting the body...." Read more

"...on smaller boats (mine is 22 feet long) the light housing does not flex enough to really conform to the mast without bending the housing and..." Read more

"The fastening flanges to wrap the mast are not flexible enough to wrap a 6" mast. Causing the mounting bracket to pull away from the fixture...." Read more

Customers are dissatisfied with the screws in the vehicle light assembly. They mention that the screws are not in the same place as expected, and the centerline screws prevent a flush install.

"...I will agree that there are a couple screws on the back that do have the points out JUST far enough that, depending on mounting, could contact the..." Read more

"...The screws are not in the same place as you would expect and the housing will snap if you bend the ears to fit around most masts. Returned." Read more

" centerline screws prevent flush install ..." Read more

Customers are dissatisfied with the size of the vehicle light assembly. They mention that it's not made to fit smaller masts and is not suitable for small boats.

"...these things are so flimsy and cheaply made, and (b) it can not be made to fit smaller masts ...." Read more

"Good light. Not for small boats ...." Read more

" Will not fit on standard sail boat masts ..." Read more

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Steaming light wiring

• Thread starter Cainsoccer
• Start date May 13, 2016
• Catalina Owner Forums
• Catalina 22

The electrical panel on my 81 C22 doesn't show a "steaming light" circuit. Does this mean when I use Nav lights, the steaming light is on? By the book, when under sail at night (I don't plan on doing a lot of this but...) I wouldn't use the steaming light, right? So do I worry about adding a steaming switch, or just leave it on the nav light circuit?  

Can't you just start switching and watch what happens? Steaming light on my original Catalina 27 panel is called "mast light" Nav lights or running lights will be port and starboard bow lights (red and green) and white stern light. The steaming or mast light is to let others know you are running under power and not sailing.  

LakeMurraySailor

Cain, the way I understand it(and I may be wrong), the steaming is only used while under power(not sailing). So you are correct, when sailing at night you should only have the navigation lights on. I used to do a lot of sailing after dark and saw lots of other boats with steaming lights on while sailing but I believe they just weren't aware of the rules.  

watercolors II

Steaming light halfway up mast! All rules and regulations are interpreted differently by the arresting officers, why are there so many lawyers if all the laws are seen in the same light. Common sense tells me and actual sailing at night, a steaming light will light up the headsail and show at a distance that you are under sail and basic running lights shows you are a vessel under power, sail power. (question becomes when sailing under main alone at night?) Turning off that steaming light when under sail says you are giving up your rights to all motorized boats. I also believe that when motor sailing at night, that steaming light should not light up your sail thus giving up your sailboat rights.  

Scott T-Bird

My panel says "Mastlight" to indicate the steaming light as well. I would expect you to have a steaming light switch because it is essential for a sailboat. Running lights for a boat that is motoring includes an all around white light that is visible, usually at the stern (elevated on power boats for visibility all-around). For a sailboat that is sailing, the running lights under sail include a white light visible only from behind (usually on the rail - it doesn't have to be elevated because it is only intended to be seen from behind). When you are motoring, your white light must be visible all around, therefore you need the steaming light on in addition to the stern light on (with the red & green bow lights) to have an all-around white light - indicating you are under motor power. If you don't have a switch for the steaming light, you should add it. Switching the steaming light on when you are under sail is just wrong and confusing to other boaters.  

Wes Gardner

I color-coded switches on my panel so I can just tell guests, "turn on all the green ones"...  

Attachments

Dude - I seriously want to hit the "wrong" toggle! Love it--  

Paul Mermelstein

Folks, it is important to note that these rules are from the US Coast Guard, for all navigable inland waters in the U.S., and are not optional. Some of you got it wrong or even backwards. These rules are not subject to interpretation by sailors or the "arresting officers". These rules clearly guide who is the stand-on boat, and who is the give-way boat, when visibility is not optimal. Specifically, when under engine power (steaming), we are powerboats. Period. Doesn't matter if we have sails up or not. [Rant over. Here's the rule.] When under sail power alone, your navigation lights consist of the red on port bow, green on starboard bow, and a white light at the stern. These are our "navigation lights" and should all be switched simultaneously. However, when under engine power, whether you have sails helping or not, you must also light the white "steaming light" halfway up the masthead, which faces forward and has a 225 degree arc. It should be on its own switch. And by the way, keeping the foresail up while steaming may obstruct the steaming light, which is prohibited, so furl it or lower it.  

UH, folks... In a 1981 c22 he just might not even have a steaming light.  

My 1972 has a steaming light. It may have been added by someone other than the factory, but it's definitely there. It does not, however, have an anchor light.  

Stu Jackson

watercolors II said: All rules and regulations are interpreted differently by the arresting officers, why are there so many lawyers if all the laws are seen in the same light. Common sense tells me and actual sailing at night, a steaming light will light up the headsail and show at a distance that you are under sail and basic running lights shows you are a vessel under power, sail power. (question becomes when sailing under main alone at night?) Turning off that steaming light when under sail says you are giving up your rights to all motorized boats. Click to expand

Leeward Rail

Jacomo Sailor

Stu is absolutely correct, but Watercolors II is also correct on one thing : " All rules and regulations are interpreted differently by the arresting officers." Not saying that makes them right, just that weather you get cited or not depends on their interpretation. I am reminded of a time many years ago when I had a run-in with lake patrol over their ignorance of lighting requirements. I sail a smaller lake in a county park that is horsepower restricted. Jacomo is dominated by sailboats and low HP pontoons. The only big HP boats are the park rangers and they are notorious for running around full speed even when they are not responding to emergencies. One evening I was anchored at the mouth of a tiny cove when a ranger boat came by at full speed. When he saw me he spun around and made a full speed turning pass 30 yards off my stern that sent me rolling. When he finally pulled alongside me, I asked what all that nonsense was about. He said he stopped because I didn't have any lights on. When I pointed out that I was at anchor and I did indeed have my anchor light on, he said it didn't matter weather I was at anchor or not, I was supposed to have all of my nav lights on. I respectfully disagreed with him and quoted verbatim the lighting requirements stated in the Missouri watercraft manual and then offered to show him the copy that I kept on board. Again, he told me I was wrong. I then pointed out that because I was within 50' of the shore and was actively fishing, I technically wasn't required to display ANY lighting except for the spot light that I shined at him when he tried to wake me. That pissed him off and he said that the Missouri water patrol rules didn't apply because Jacomo is a county lake. He tried to BS me and said that the State gave them an exception to make their own rules. He then pointed to the general park rules which merely state that navigation lights are required to be displayed on all vessels operating between dusk and dawn. He argued that an anchor light is not a navigation light. I then informed him that lighting requirements are federally prescribed by the USCG and do not grant individual states the authority to make their own rules, nor can the State authorize a county to make it's own rules. I then cited the section that says you may not display any lighting other than what is prescribed, so technically I would be violating the law if I had all of my lights on. He finally realized that he was in a losing battle and agreed to "let me off" with a warning if I agreed to turn on all of my lights. He then basically threatened me saying that he would be watching for my boat and if he ever saw me out after dark without all of my nav lights on, he would ticket me and the county would revoke my mooring permit for violating park rules.  

and lets not forget the day shapes. upside down "cone" to indicate you are under power with sails up and anchor "ball" for when you are anchored during the day. I don't think there is a say shape for motoring with the sails down.  

@Leeward Rail it's just a spare....  

I assume my boat is somewhat "grandfathered" as my factory running lights are mounted on the sides of the house. (Built in '67) I do have both anchor and steaming per regs. Someday I might refit a combo light on the bow rail for safety as the jib does/can create a blind spot.  

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Steaming Light

Definition of steaming light.

A steaming light is the white, forward-pointing light that a motorized watercraft carries at night or when there is poor visibility.

It’s also known as a masthead light or mast light .

According to COLREGs , the collision regulations, a power driven vessel that is underway , must have a steaming light visible from directly ahead to 22.5 degrees behind the beam on either side.

In addition, a boat under 50 meters long may have one steaming light, but larger boats must show a second, similar light set farther back and higher up on the boat to increase visibility.

It’s important to pick a light visible for 2–3 nautical miles . The LED Masthead Lamp is a long lasting, energy efficient light that is compliant with this rule thanks to its 3 NM and 5 NM options.

A sailboat doesn't have a steaming light but may display a tricolor light at or near the top of the mast.

The LED Tri-Color with Anchor Lamp lights green (starboard), red (port) forward, and white towards the stern.

Example of Steaming Light in a Sentence

"The steaming light on the front masthead of the boat provided clear visibility of its direction of travel to nearby vessels."

Synonyms: mast light, masthead light

Related Terms for Steaming Light

• Masthead Lights
• Stern Lights