High luminous efficiency, life-span reachs 50, 000 hours. Waterproof(IP68) Easy to installation. Product DescriptionFeatures: 1), Super-clase high power LED which is encapsulated by high efficiency and latest heat disipation structure. 2), First-class stainless steel(316) or bronzeAB2 shell has excellent corrosion-proof, makes the light to use in sea water freely. 3), High luminous efficiency, ...