... more than 45 degree celsius or the voltage is above 30V, the output current of built-in constant ... temperature and voltage is normal, the lamp also work normal.6), Professional waterproof design and prevent seawater wires.7 ... Waterproof: IP68 for underwater use only Color Available: W,G,Y,R,B. All lights with 2 meter ... We accept OEM order. Other Marine Lights: The Newest Design 6X3W Undersea boat led lamp