US Patent 7762685 Under water lighting system

An improved lighting system is disclosed for location beneath a surface of a body of water for illuminating the water. The lighting system comprises a light bulb having a cap and a body having a positive buoyancy. An electrical conductor electrically couples the cap of the light bulb to an electrical source. An encasement encapsulates the cap of the light bulb. An elongated conduit sheaths the electrical conductor. An anchor engages the elongated conduit for submerging the light bulb beneath the surface of the water.