10 Best Underwater Boat Lights 2026 in the United States

The HUSUKU GT12 underwater boat light kit shines brightly with a powerful 12,000 lumens output, making it suitable for large boats and marine docks where strong illumination is needed. Its RGB color capability lets you choose from multiple colors, adding a vibrant and customizable look under the water. The lights are built from all-metal, anti-corrosion marine-grade materials, ensuring good durability and resistance to harsh underwater environments. With an IP68 rating and fully sealed design, they are well protected against water damage.

Installation is straightforward thanks to the two-wire plug-and-play system, which means you don’t need complicated setups or additional hubs. The surface mount type is convenient for most boats or dock surfaces. The included wireless remote control is user-friendly, allowing you to adjust colors, brightness, and modes smoothly, and the auto-sync feature means multiple lights can automatically coordinate, greatly extending control range without extra effort.

These lights are intended for underwater use only, so they might not be suitable for non-submersible lighting needs. While the kit includes two lights, expanding beyond that requires purchasing more units separately. The power source is corded electric (12V DC), typical for marine use, but it requires a suitable power supply on your boat or dock. The HUSUKU GT12 lights offer excellent brightness, durable construction, and easy wireless control for underwater boat or dock lighting, making them a great pick if you want vibrant, high-quality illumination with simple installation, especially for larger boat or dock areas.

The Shadow-Caster SCR-24 is a bright underwater boat light offering up to 7,500 lumens from 24 powerful LEDs, making it excellent for illuminating underwater areas around your boat. Its Bimini Blue color adds a stylish and attractive glow. The light is built to last with a tough bronze housing and a scratch-resistant tempered glass lens, both ideal for withstanding harsh marine conditions. It’s fully submersible with an IP68 waterproof rating, meaning it can stay underwater without issues.

The product also includes safety features like surge protection and reverse polarity protection, helping prevent damage from electrical problems. Its thermal throttling technology ensures it operates safely even when not submerged, adding peace of mind. The surface mount installation is straightforward and doesn’t require complicated setup. Though it runs on 90 watts, which is on the higher side, this power consumption supports its bright and wide underwater coverage.

At about 3 pounds and compact size, it’s easy to handle and install. This light is ideal for boat owners wanting a reliable, bright, and durable underwater lighting solution that enhances both safety and aesthetics. For those seeking quality underwater illumination, this product performs very well.

The Lumitec SeaBlaze Mini underwater boat lights offer a strong 700 lumens of bright white light, which is great for small boats like dinghies, skiffs, or fishing vessels. Made in the USA with marine-grade anodized aluminum housing, these lights are designed to handle tough marine conditions and resist corrosion. Their small size and versatile mounting options allow installation either above or below the waterline with a simple 1/2" hole, making them easy to fit on various boat types. These lights work with a wide range of boat electrical systems (12-24 volts DC), adding to their convenience.

The polycarbonate lens is clear and waterproof, ensuring durability and good light output underwater. They come as a pair, which suits dual-side mounting needs. One standout feature is the long 5-year warranty, which is rare in this category and shows the manufacturer's confidence in the product’s quality. With just 12 watts of power, these lights are best suited for smaller boats rather than large vessels needing more intense illumination.

For those with small boats seeking reliable, compact underwater lighting that offers good brightness and build quality, the Lumitec SeaBlaze Mini represents a dependable option.