best boat underwater lights

5 Best Boat Underwater LED Lights 2018

Adding underwater lighting to your boat is a simple way of making it stand out in the waters when parked up. You will notice underwater lights on most yachts but most modern small boats are starting to jump on the trend.

The best boat underwater lights are the LED Lumitec SeaBlazeX that comes with a range of colors including blue, blue/white, green and solid white with up to 4,000 Lumens of light to fully illuminate around the boat.

Not only do underwater lights make boats look more modern and attractive but many anglers believe they attract fish towards the boat.

Best Underwater Lights For Boats

Underwater Boat LightLumensHousing
Lumitec SeaBlazeX LED4,000Bronze
Jiawill2,853Stainless Steel
AGPtek IP68 Waterproof LED1,600Stainless Steel
TH Marine LED-51866-DP180Plastic
Shadow-Caster SCR-247,500Bronze

The four main types of underwater lighting for boats are LED’s, xenons, metal halide and halogen bulbs. LED underwater lights are the most popular among boat owners due to the brightness and reliability associated with them.

Before purchasing underwater lighting, you will want to choose the light source, where it will be mounted, beam width and beam angle.

Different color lights are very popular and you are able to get any color that you wish to make your boat stand out from the rest. Below is a list of the best underwater boat lights that will provide your boat with the WOW factor.

Lumitec SeaBlazeX LED Underwater Boat Light

The Lumitec SeaBlazeX is a popular underwater light for boats that provides up to 4,000 Lumens. It is available in white, blue, green and white/blue with both strobe and cross fade modes for mixing things up.

As the light will be spending the majority of its time in salty water, the SeaBlazeX uses marine graded bronze alloy housing. They are transom mounts with small through-hull holes that are 1/2 inch in diameter. They have a lower profile and smaller footprint than most yet produce a large amount of light.

As they are LED lights, they consume very little power, which means you will not need to install any powerful marine batteries if you were to have many of these lights. The Lumitec SeaBlazeX is a premium LED light that is easy to install on any boat.

Powerful, durable and long lasting are three terms used to describe these lights and they are by far the best underwater boat lights you can buy.

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Jiawill Underwater Boat Lights

The cheaper Jiawill underwater light for boats is available in red, blue green, white and a mixture of colors, with an output of 2,853 Lumens. The construction of the light is a marine graded stainless steel housing with a shatterproof polycarbonate lens. This ensure the boat light is durable underwater against any vibrations or shocks.

It is a low profile design with the height of the housing only being 17 mm, which is the lowest profile of all the lights in this article. For white light, it uses 6 Cree 10 watt LED’s for a bright light underwater and 12 Cree LED’s for the other colors.

The stainless steel fascia of the Jiawill underwater light gives a great attractive finish and the light performs well with a range of colors. It is the best underwater boat light for the money and is much cheaper than the SeaBlazeX but not as powerful.

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AGPtek LED Marine Underwater Light

The AGPtek Stainless Steel IP68 Waterproof LED Marine Underwater Light is a premium package that is suited towards the larger luxury boats and yachts and is available in multiple sizes. This light include 12 LED’s and comes with a fuse kit and power regulator to ensure a safe yet long lasting source of light.

AGPtek claim that the LED’s have a lifetime of 30,000 hours and they have been designed to illuminate at a beam angle of 30 degrees. The LED’s only produce 1,600 Lumens but this does mean that they will last longer.

Overall, the AGPtek marine underwater light provides an excellent light source for a relatively reasonable price. Unlike the others mentioned, it is more of a rectangular shape than circular, which may be more appealing to some boat owners.

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TH Marine LED-51866-DP

For those boat owner looking for an affordable budget underwater light that actually performance, the TH Marine LED’s are the answer. They are high intensity lights with six bright LED’s that use a lower amperage draw than many other bulbs of a similar price bracket.

Not only are these underwater boat lights a fraction of the cost but they have over 100,000 hours of life, which is very impressive. These would be excellent to mount onto an inflatable dinghy boat or other smaller hulls.

Overall, the TH Marine LED-51866-DP are the best underwater lights for small boats with the added bonus of being very cheap to purchase. If you have a larger boat, it would be advisable to go for the other alternatives for a large illumination (these only have 180 Lumens) and go for a higher quality finish such as bronze or stainless steel.

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Shadow-Caster SCR-24

The Shadow Caster is the most expensive underwater boat light in this article and per light fixture, it has an impressive 24 LED’s that produce over 7,500 Lumens. There is an offering of a range of colors but the white and blue LED illuminations are the most popular.

The light is built using a durable bronze housing with the glass lens being scratch resistant. There are several brightness options and a transient surge protection functionality to prevent any damage to the light.

Overall, it is a high end underwater light designed for luxury boats and yachts that want the best lighting underwater. It is the most powerful underwater boat light in this article and comes with 2 years warranty as peace of mind. It is expensive but if you own a very expensive boat or yacht, you will want to match it with an expensive light.

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Underwater Boat Light Buying Guide

Adding underwater lighting as a modification to your boat or yacht is an excellent way to make life easier and add value to your boat. Underwater lights for boats provide light for night time fishing and some anglers believe it attracts fishes to the boat. The main reason many boat owners choose this type of modification is simply to make their boat more attractive and modern.

The choice of color that the underwater light may be is dependent upon the manufacturer. Many include multiple colors such as red, blue and green but the most popular is the solid white xenon look. Many premium lights have modes that can come in the form of strobe lighting and many more. However, you will expect to pay a premium for this sort of functionality.

LED, Xenon or Halogen

LED’s are the most popular form of underwater lighting for boats, this is due to many benefits such as a limited amount of power required, long lasting bulbs, low heat exposure and zero lag. Xenon light is mostly used in the automotive scene but they are seen here and there for underwater lighting. They provide a strong light penetration and spread but do become hot and prone to reliability issues.

Lastly the older halogen bulbs are a cheap alternative to all of the light sources above. However, they are soon becoming extinct due to the fact they draw so much power, provide a poor lifespan, low lumens and become hot after prolonged usage.

Underwater Lighting Installation

Installing the lights so that they work underwater usually requires drilling a small holes into the transom of the boat. This is not something to be worried about as the underwater light will usually come as a kit with all the hardware and mounting gear.

In short, you will need to align the light where you want it to be, drill through the hull, wire into a power source and ensure it is water tight. An excellent guide to installation can be found at Boating Mag with a 10 step guide.

Housing Materials

As the underwater boat lights are mostly going to be submerged in water, its vital the material will not become corroded from the salty water. This will involve using materials such as bronze, stainless steel and durable plastic.

Almost all of the mid-range to premium lights will be bronze or stainless steel and they are what look the best. When on a budget, the majority will be plastic that won’t have the WOW factor but will do the job just fine.


Underwater lights for boats is a great modification that can be done by the majority of boat owners. It can make any boat look more modern than it actually is and provide a number of other benefits.

Due to the nature of underwater lighting, prices are not that cheap apart from the TH marine light. However, if you only an expensive boat, you would not want to spoil it with some cheap lights but instead invest in high quality under boat lights that will add value to the boat in the long run.

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