LED Lights That Can Be Put in Water

Boats and Piers

• Boats need navigation lights and spotlights for nighttime use, and a waterproof LED is a good choice. The LED and its wiring are encased in a tough metal housing with a watertight lens and a gasket-sealed port for the power cable to pass through. These may be submersible, mounted above the waterline or placed on a pier. Marine units are made from corrosion-resistant casings such as brass.

Flashlights

• The Gerber Infinity LED flashlight is encased in a pressure-resistant metal cylinder sealed with O-rings for greater protection. The internal circuitry is also epoxy-coated, offering further protection from moisture. This flashlight takes advantage of the compact but bright capability of LEDs and projects a beam of light up to 30 feet.

  An LED diving flashlight for deep-underwater use is made by Pelican and claims a usable depth of 500 feet. The light is made from a very tough molded plastic and is guaranteed not to break.

Fishing Lights

• Anglers use underwater light sources to attract fish at night, and submersible LEDs provide an inexpensive solution. The Optronics LED100G uses three "AAA" batteries and is designed to be lowered into the water to attract fish. The energy-efficient nature of LEDs allows this light to operate 50 hours on one set of batteries. Another very affordable submersible LED solution for fishing is the Ultra Flash model 38-424-376-01 droplight. It can provide up to 250 hours of operation on a single lithium battery and functions at depths up to 3,000 feet.

Fountain Lights

• Underwater lighting for decorative fountains traditionally generate a great deal of heat, which shortens the life expectancy of the light. Underwater LED lights consume about 80 percent less energy than conventional lights of comparable brightness. A fountain LED might last up to 100,000 hours, many times longer than an incandescent bulb.