The Best Underwater Transom Lights - Complete Buying Guide 2023

Hailey Abbott By, Hailey Abbott
attwood 6556-7 Universal Watertight Marine Boat LED Round 3 Nautical Mile Transom Light
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Whether you’re anchoring in a remote area or just mooring your boat at a dock, having the perfect lighting is essential for maintaining a pleasant atmosphere. For that, we recommend investing in an underwater transom light. These fixtures are designed to be mounted near a boat’s rudder and can illuminate your vessel from below.

The result is a glowing blue light that creates the ideal ambience for when you want to spend time on board, but don’t want other people around. We cover everything you need to know about these fixtures in this article.

With attwood 6556-7 Universal Watertight Marine Boat LED Round 3 Nautical Mile Transom Light, you will have no difficulty finding anything to meet your needs! To help you find the best fit for your needs, we've put up a purchasing guide and also show other great options for you to consider.

Before finalizing your selection, our staff advises that you look into these additional important resources. They may help narrow down your selection and clarify things to locate the right fit. Look no further than HUSUKU SOOP3 PRO 6.7" 2000LM 60LED Waterproof 316 Stainless Steel Trim Ring Boat High-Intensity LED Underwater Light Clear Lens Pontoon Marine/Boat Transom (Blue) since you're seeking the budget-friendly option. Our top models are equipped with features to meet every requirement. 

Our Top Picks

  • Package Length Of The Item Is 12.0"
  • Package Height Of The Item Is 12.0"
  • Package Width Of The Item Is 12.0"
  • ▼EXCELLENT WATERPROOF PERFORMANCE. IP68 Waterproof underwater boat light. Waterproof, also dust-proof and shockproof. Fit for your pontoon, marine, boat, caravan, RV applications and anywhere you want.
  • ▼EASY TO INSTALL: Quick 2-screw installation will help you fix it more stable, enables you to mount it in anywhere you want.
  • ▼NEW UPGRADED 2000LM UITRA BRIGHT 60 LED. High intensity transom light make your boat more visible, increasing safety for night activities, like swimming, diving, loading and unloading activities.
  • Bulb type: 1 x 1w cool white led
  • 120 deg, beam angle
  • Effective wattage: 1.3w
  • UPGRADED IP68+ WATERPROOF ➤ 30M water depth aging without any leakage. The latest triple waterproof design: PCB waterproof coating, high temperature resistant waterproof glue, and super hard rubber seal on the back cover.
  • INJECT SOUL INTO YOUR BOAT ➤ 1200LM 10-36V, 27LED 2835 Chip. Selected lamp beads, IC, PCB board, higher efficiency and longer life. Greatly reduce the risk of reinstallation. Be the most special and eye-catching boat from now on!
  • BEST MARINE MATERIALS ➤ 316 stainless steel, which is ten times more expensive than 304, is specially designed for highly corrosive salt water. Cool plasma polishing, full and silky luster. High-strength PC House, resistant to extrusion and impact.
  • Fasteners and Mounting Gasket Included
  • It can be used to light an interior compartment and may also be used as a cockpit courtesy light
  • Replaces existing stern & swim platform lights with LED lighting
  • Made in the USA - all Lumitec lights are designed, tested and assembled in the U.S., Lumitec supports American business and creates American jobs
  • May be mounted above or below the waterline
  • Marine grade anodized aluminum housing
  • ✅🚢【Universal Fitment 】: Led marine lights for boats, Widely work for Pontoon,Fishing Boat, Dinghy, Bass boat, Jon boat, Boat Trailer, Warships, Submarines,Kayak, Yacht, Sailboat,etc. Can perfectly replace the lamp you want to replace.
  • ✅🚢【Ultra Brightness】:6Pcs 2835 high quality SMD LED each light,Built-in ultra bright LED beads, provides maximum visibility! Can effectively convey signals and draw attention.
  • ✅🚢【Easy Install】:Flush mount,2-wire connection: black is negative,red is positive,Fix with screws, greatly improve your navigation safety,they can be mounted anywhere you want.
  • ✅【Easy Installation】2 Wires Connection: Black is Negative and White is Positive. 12V DC, 3.8'' size, surface mount design with screw sets and foam tape bases.
  • ✅【Feature】As a perfect interior decorative light suitable for marine boat, pontoon, kayak, yacht, dinghy, fish boat, sailboat, barge, Jon boat, bass boat, etc.
  • ✅【PSEQT WARRANTY】5 Years Warranty Guarantee. Strictly testing before shipping. Feel free contact us for any question, we have professional service and excellent quality team.
  • Includes two #10 stainless steel screws
  • Watertight construction designed to withstand corrosion
  • Vertical flush mount installation

What to Look Through Prior to Selecting the best underwater transom lights?

You may be aware that purchasing something is not actually an easy action. Your everyday life will be affected if you choose the most fantastic product. What variables, though, will make this acquisition successful? Whether you're seeking for best underwater transom lights to meet your needs, you'll be wasting your own time.

Nevertheless, it would be preferable if you weren't so worried. We've enlisted the help of a team of professionals to investigate best underwater transom lights, and we've provided accurate data.

There seem to be several important considerations to make. But only a few of them are really concentrated. Here are some crucial reviews while purchasing best underwater transom lights:

Energy Efficiency

Lights that consume minimal energy and don't compromise on performance are best. You won't drain your battery by using energy-efficient lighting. This lighting does not consume a lot of power. If efficiency is important to you, LED lighting may be the right choice.


Professional installation of marine-grade lighting is not necessary. You can do it yourself, provided you select the correct product. They are easy to put in and take little time. A light should not need a lot drilling. Most cases you only need a hole to mount the screws and a few more.


Select a light that is marine-grade and proportional to the size of your boat. A small light is best for small boats. For small boats, three to four inches should suffice. If you have larger boats I would recommend stretching the length to 10 inches.


Beyond aesthetics, color selection is crucial. Choose a color that is compatible with your particular situation. Marine lighting can be single- or multicolored. You can change the colors manually by using a handy switch, or even via a mobile application.
The most common colors are red, green, blue and white. A red light indicates that another boat or vessel is coming. Green indicates the port side. It repels insects and is ideal for sandy bottoms and shallow water. For fishing, both green and white can be used. Blue light is relaxing, however.

Beam Width

This refers to the angle from which the lighting is viewed. For larger boats, you will need more lighting. The temperature ranges between 90 and 120 degrees. To choose the right beam width, decide if the light should be narrower or wider. To attract fish, you will need to use a larger beam for underwater lighting.


This reflects the light output. It is important to know the lumen rating. Higher numbers indicate a more powerful light source. Lights with smaller lumens have lower power. At least 600 lumens is required for navigation. You can also choose a lower rating if you are looking to produce a dramatic or calming effect.
Additionally, I've compiled a list with the best battery-powered navigation light and boat navigation lights.


Where Should Underwater Boat Lights Be Installed?

An underwater light should be installed on an unobstructed, flat surface at least 6 inches below the waterline. It is best to place it in the transom. This increases visibility while the boat is in motion.

How To Install And Use Underwater Boat Lights?

To elevate your boat, first place a few bricks on top. Next, get an underwater light. Then, mark where your underwater lights will be placed with white paint. Next, make a cut in the center of your mark. Then, insert the light wire through this hole. After the wires have been inserted into the hole, screw the light into place. Tape the light, and then paint the surrounding area.

Once that is done you are now able to go into the boat to handle the wires. After you have connected the wires to your boat's power supply, you can then test the system. You will be able to see if the light switches are working when you push the button.

How Do You Install Underwater Boat Lights?

It doesn't matter if you have a flush-mount or surface mount boat light. The steps will vary depending on which type. Here's the general procedure for installing a boat light.

Place the boat on a flat surface or anywhere else you are able to work easily.
Find the best location to mount the boat light. After drilling, mark the exact location and ensure that nothing is damaged.
Start drilling. Connect the power supply to the wires and run them through the hole. For wiring your underwater boat lights, follow the instructions provided by the manufacturer.
The power box should be placed in the best possible position. You should choose a place that is dry and has adequate ventilation.
Check the light. It may not work. If so, check the connections to make sure they are correct.

How Long Do The Lights Last?

The underwater LED lights used in boat lighting can be operated for up to 40,000 hours. This would give you 4.5 years continuous light output. Even though they're more expensive than incandescent lights, you don't need to change them as often as with LED boat lights.
These lights need to be maintained and cared for as they are often submerged in water. You should clean your underwater boat lights at least once a month to get rid of algae, barnacles and other sludge.

What Color Of Underwater Light Is Best?

We see green fish lights most often. Many people believe that only green lights can lure fish. However, this is not true. The color of the light has no effect on the amount of fish it attracts.
Although fish lights may seem to magically lure fish into the berths, this is actually an extremely complex scientific process. Aside from the fact that fish lights are visible below water level, it is possible to lure them with any type of light, no matter what color. If lights are placed underwater, some particles of water reflect back.
These small particles provide bait fish with a natural food source. Once the bait fish have been lured, they will be attracted to the sun. Once the bait fish have been lured to the light, larger game fish like bass and tarpon are also attracted.

Will An Underwater Boat Light Attract Fish?

The right lighting can attract fish to your boat. The area will be illuminated by any light, no matter its color. The water will reflect small particles of food and other debris, which will attract the fish closer. The baitfish will draw larger fish to the boat, increasing your chances of catching a new catch.

The figures we've presented here aren't all of them. Alternatively, we continuously update it as new information becomes available. It's advisable to keep in mind the points we discussed related to buying guide.

We always appreciate your feedback and handle it with the utmost importance. As a result, the most up-to-date data will come to your mind as soon as possible. You are supposed to contact us and give us your reviews as well as problems so that we will try to support you. Hope you have a pleasant shopping experience!

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About Hailey Abbott

Hailey Abbott
Hailey Abbott is an outdoor enthusiast and freelance writer for CampfireHQ. She has a passion for hunting and fishing, which she often enjoys with her family and friends. Hailey also enjoys staying active through sports such as golf, basketball, and softball. Hailey has worked as an editor for several years, providing content that is both accurate and engaging. She has also had the opportunity to interview numerous experts in various fields. This wealth of experience gives her a unique perspective when writing about the outdoors and other topics.

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