... efficiency and latest heating conducting structure. 2,The Shell is adopted by the first-class aluminum, has excellent corrosion-proof, ... 5,Waterproof, Shake-proof, energy-saving, environment-friendly. 6,The power of one part: 4*1.5W7,Supply Voltage : ... Φ16x50mmHApplication: Highest Waterproof grade IP68, good for underwater boat lights Application Picture: 6w led navigation light bulb for car and boat