What You Need To Know About Marine Underwater Lights

Whether you are looking to explore the world beneath the ocean, or need the way lit for your boat, you will need a pair of quality marine underwater lights. If you are thinking of adding, or upgrading underwater lights on your boat, here are a few things to keep in mind.

Benefits of LEDs

Newer models of marine underwater lights utilize light emitting diodes, or LEDs. This allows the lights to last longer, be more energy efficient, and operate at lower temperatures. LED technology also helps lights withstand vibrations and lack environmentally damaging toxins that are found in other types of marine underwater lights.

Color and Beam Width

You can choose to vary the colors and beam width of your marine underwater light. Each color can bring out different aspects of the water, allowing you better clarity for your purpose. For instance, blue light produces a subtle, pleasant glow over the water. The width of your beam can change as well to either produce a more concentrated glow or a wider, more even visual field.


There is a variety of options for mounting your beams. You can choose between a variety of mounts including trim tab, drain plug, surface mounts, thru hulls and interchangeable thru hulls. Each type of mounts has its own advantage and disadvantage. Consider what you want out of your lighting as you choose the type of mounting for you underwater marine lights.


Underwater marine lights come in a variety of power options, and some will be able to provide more light then others. This is typically measured in lumens. The more lumens, the brighter the light will be.

With the variety of options for underwater marine lights that are on the market, you are sure to find your best fit if you take the time to do your research.