1,Stainless steel 316 2,With semileds led chips 3,IP68 4 ... . 2), First-class stainless steel(316) or bronzeAB2 shell has excellent corrosion-proof, makes the light to use in sea ... temperature and voltage is normal, the lamp also work normal.6), Professional waterproof design and prevent seawater wires.7), ... .4), We accept OEM order. Other Marine Lights: The Newest Design 6X3W Undersea boat led lamp