How to install underwater boat lights?

Posted by Author David Lee


Last Updated September 1, 2021

Here are some installation tips about underwater boat lights.

To install underwater boat lights, it is important that you use silicone sealant or another waterproof material to seal the lights to the underwater hull of your boat. The silicone should be applied in a thin layer along the outside edge where it will contact water, such as at any screws that you use to attach them or on edges with visible gaps.

The underwater boat light’s positive and negative wires are interchangeable so make sure they are hooked up correctly before sealing up anything else.

If there is no gap between two corners of an underwater housing then silicone can be applied across the whole surface instead for more protection against saltwater corrosion and other forces in marine environments like waves crashing over the top if submerged too deep.

To ensure waterproofing, let each application cure for 24 hours after installing underwater lights on your boat.

Underwater lights for boats are a good choice for underwater boat lights because they can be submerged underwater and still function properly.

When it’s time to replace the underwater light bulbs, you will need to remove your waterproofing sealant first before taking out the old bulb and inserting new ones inside.

Tip: The process is more complicated than installing regular lights but with proper attention, these underwater boat lights will last for many years!

For electrical connections below the surface where they may come into contact with salt water it’s better to use underwater lights that use LED bulbs that are less likely to corrode underwater.

Underwater boat lights need a good sealant around the edges of where they’re installed so that water does not leak in and damage the electrical components, or become corrosive and cause an electric short circuit.

Underwater boat lights should be wired for 12-volt power supply and have a minimum rating of 20 watts per light fixture.

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