Best Underwater Boat Lights

Don’t keep the fish, or the dockside dollies, in the dark. You’ve undoubtedly seen underwater lights shining in front of boats and floating in front of docks if you live near the ocean. What is it about these lights that is making them so popular? If you own a boat, you are surely aware of the importance of having appropriate boat lighting. Boat lighting ensures your vessel’s safety and efficiency. If you’re new to boat ownership or dreaming of a life at sea in the not-too-distant future, you should educate yourself on boat lights.

A new generation of safer and more efficient underwater lights has evolved as a result of technological advancements. Boaters and yacht owners have shown an increased interest in installing underwater LED lights on their vessels in recent years. LED lights are now the new standard for most marine vessels as technology has improved in the boating sector. Read on to learn everything you need to know about these maritime accessories before you go out and buy your own.

Here are the 5 best underwater boat lights you can buy:

  1. Lumitec SeaBlaze Quattro
  2. Lumitec SeaBlaze X2
  3. Aqualuma GEN4 12 Series
  4. Hella marine Apelo A2
  5. OceanLED Sport S3166d

1. Lumitec SeaBlaze Quattro

The SeaBlaze Quattro is built on the shoulders of the world’s most popular underwater light, SeaBlaze3, and leveraging the technology of its big brother SeaBlazeX. The SeaBlaze Quattro is based on the SeaBlaze3, the world’s most popular underwater light, and incorporates the expertise of the SeaBlazeX, the company’s flagship model. Quattro has a lumen output of over 2000, a multi-mode output with crossover fading, and a bronze body that is extremely durable. Spectrum output is available in dual-color white/blue or full-color. The SeaBlaze Quattro is the new standard in underwater illumination.

2. Lumitec SeaBlaze X2

With the release of the SeaBlazeX2, Lumitec has moved even further ahead of the competition. While competitors have attempted to close the quality and performance gap between our extremely effective SeaBlazeX, Lumitec has moved even further ahead with the release of the SeaBlazeX2. The SeaBlazeX2 delivers exceptional performance, producing over 6,000 lumens and available in dual-color white/blue or full-color Spectrum output. The SeaBlazeX2 Spectrum has an almost infinite number of powerful, vibrant colours, a soothing colour cycle feature, and a solid bronze construction. It has a world-class durability reputation, is flat attachable, and requires no additional drivers. The level has been raised yet again.

3. Aqualuma GEN4 12 Series

The 12 Series is a serious light designed to illuminate larger vessels, and it is a member of the legendary thru-hull family. The 12 Series is a larger thru-hull option. This bright light is capable of delivering a devastating punch. With a corrosion-proof, injection-molded, proprietary polymer casing, the 12 Series is internally driven and maintainable. This product is appropriate for yachts with lengths ranging from 12 metres (40 feet) to 30 metres (100 feet). It is available in two colours: Ultra Blue and Brilliant White (100 feet). The Aqualuma 12 Series is part of the Thru-Hull series and comes with a 6-year housing guarantee and a 3-year internal warranty.

4. Hella marine Apelo A2

The Optical Intelligence of Apelo intelligently focuses light patterns beneath the waterline. A narrow vertical but wide horizontal angle suggests more light when viewed from above. Grilamid, a high-strength, UV-resistant lens, is transparent and long-lasting. The Apelo A2 series introduces cutting-edge Edge Light technology, which features dazzling illumination signatures that surround the lamp. Edge Light mode gently bathes the stern in pure white as both service and decorative lighting. Apelo A2 RGB bulbs can be driven by almost any analogue RGB controller, making connectivity and control a breeze. Advanced circuitry allows for reliable illumination and lamp safety even with extreme voltage fluctuations and low battery voltages. Apelo lamps have a 5-year warranty and are designed to reduce interference with radios, chart plotters, and other onboard systems.

5. OceanLED Sport S3166d

The Sport S3166d, with its spectacular multi-color light show, provides a dynamic backdrop for your docking events. There are more specific LEDs per colour in comparison to top rival models that use complete RGBW colour blending. To attract marine life and create your own aquarium, you can choose any colour or scroll across the spectrum. It is possible to attach to floating pontoons. The Easi-Kleen floating bracket system makes cleaning the light as simple as swinging it out of the water.

Buying guide for underwater boat lights

Key considerations


This is perfect for attracting fish or having a cool-looking party boat. The 3000 lumens of light produced by the 84 LED lights is impressive. That’s a lot of light, and it’ll shine through even the murkiest water. If the 3000 lumens are too bright for you, you may always configure your lights to reduce them. Look for a light that produces at least 1500 lumens, ideally 2000 lumens. Keep in mind that many brands exaggerate or just mislead about the lights’ true performance. Concentrate on well-known products and read the test results.

IP Rating

When shopping for outdoor lighting, getting the right IP rating is key for maximizing longevity and safety. his is a simple two-digit number, which will let you see at a glance how weatherproof a light is. The higher the number the better!

IP69 is the highest IP rating. This indicates that the fixture is “dust-tight,” meaning that no dust can get inside. In terms of water protection, this grade indicates that the light can withstand high pressure and high-temperature water or steam. Keep in mind that some fixtures with an X8 or X9 grade are hermetically sealed, preventing any water from entering. This is the most usual scenario. Water may slip inside from time to time, but it will not harm the fixture.


Anything with a depth rating of up to 100 feet will suffice for shallow diving; however, for deep diving, the depth rating must be at least 200 feet.
Red light is almost completely absorbed within the first 20 to 25 feet. Orange penetrates 35 to 45 feet, and yellow 65 to 75 feet, while green and blue remain visible for as deep as the light penetrates.

Beam Angle

If the amount of light on the outside perimeter of the light cast is equal to the amount of light in the center area, your camera will pick up a “hot spot” in the middle and your image will look uneven, with the center being too bright and the outer area being too dim. For lighting films and wide-angle images, however, photography lamps with 60-, 100-, or even 120-degree beam angles are ideal. As a result, most underwater photography lamps have a beam angle of 60-120 degrees.


Hue has always been an issue for LED lights; in the past, they’ve produced a very cool or cold light color, prohibiting a vibrant “pop” of your undersea objects. You’ve definitely heard the term “color rendering” before. With the introduction of COB (Chip On Board) LEDs, light “warmth” has substantially enhanced, resulting in improved color rendering or “CRI” (Color Rendering Index). CRI stands for color rendering index, and 100 represents natural sunshine. For best results, look for lights with a CRI of at least 80.


If you require lights for usage in saltwater, seek for lights with a protective coating or other corrosion-resistant feature on the housing. Marine-grade materials are an investment that will last in saltwater for a longer period of time.
316 stainless steel or bronze are used to create high-quality underwater lights. Freshwater and saltwater lights can both be made of stainless steel or bronze. Stainless steel, on the other hand, permits marine growth while bronze discourages it. Stainless steel is a good choice if your boat is taken out of the water after each use. If your boat is going to be in the water for months or years at a time, though, you should search for lights with bronze casing. This is particularly crucial in saltwater, where barnacles are an issue.

Budget \ How Much Does Underwater Lighting Cost?

Underwater lighting costs vary substantially depending on the product’s quality. You might acquire an underwater LED light for as little as $100 or $200, but these low-cost models usually come with higher safety hazards and generate less light. You should expect to pay around $400 or $500 for a high-quality LED underwater lighting system. HID lighting can set you back even more money. While the initial cost may appear high, the underwater LED lights more than make up for it with their exceptional endurance. You won’t need to change the bulbs for a long time, as they can last up to 50,000 hours.

They do, however, necessitate a little extra maintenance because they are submerged in water. Every month or so, you should remove and clean your lights to remove any barnacles, algae, or other filth that has accumulated. Because the heat from HID lights burns out marine life, they are almost self-cleaning, which is one of the few advantages HID lights have over LEDs.

Frequently Asked Questions

Q. What is the length of the light beam? What is the projected distance of the lights underwater?

There are several elements that influence how far the lights penetrate the water. These are the following:

  1. Beam angle and form, which are controlled by optics.
  2. The number of LEDs and their brightness.
  3. The color of the light
  4. The water’s clarity.

We’ve seen light go as far as 3′ / 1 meter in muddy water, but in ideal conditions, the same lights can extend over 100′ / 30 meters.

Q. How simple is it to set up?

Marine lights lights are created in-house and are designed to be simple to install. For each of our products, please see the installation manual.

Q. Which type of switch should I purchase?

A basic two-way switch, which can be obtained from your local maritime dealer, will work with most products. You may already have an open/empty two-way switch on your console that you may utilize instead of acquiring a new one. When installing underwater lights, it is always recommended that you consult a competent marine installation.

Q. Is it okay for me to run with my underwater lights on?

LEDs are a solid-state light source, which means they are not susceptible to vibration-related failures. Thermal protection is built into marine lights, so if they overheat, they will dim or switch off as a precaution until the temperature drops to a safe level for the LEDs to operate.


  • It’s quite simple to clean. A soft bristle brush should suffice when in the water. When you get out of the water, make sure the lens is wet and then scrape it off with an ice scraper or anything similar.
  • View our product pages for specific detail on each light voltage.
  • Aluminum bronze is often used in marine applications because of its high resistance to salt water corrosion and excellent thermal properties, which assist keep operating temperatures low within the light body.
  • Blue and green light have shorter wavelengths than white light, which allows them to permeate the water more effectively and produce a greater lighting effect. Shades of blue and green are more visible to the human eye, thus they will make your lighting display stand out.

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