Blue IP68 Waterproof Rate 9 LED 27W Brightness Underwater Light Boat Drain Plug Light With 1800 180&deg; Viewing Angle For Fishing & Swimming &hellip; WATERPROOF: The shell is made of aluminum which has great anticorrosive effect. The shell surface is titanium alloy plated that not only increases the gloss but also further enhances corrosion resistance and wear resistance. VIBRATION PROOF: It will not effect by engine movement, so you can use it when cruising. GREAT LIGHTING: 9 high power 3W CREE LED lamps contribute to total 27W lighting. 180viewing angle, luminous flux 1800Lm GOOD HEAT RADIATION: Aluminum housing and titanium alloy plated form a good cooling system to protect the light and extend the serve time. WIDE USAGE RANGE: You can use the lights in many ways, such as night fishing, night fishing, lighting up your wave when underway and creating good effect in your boat.