... high bay industrial lighting 2,Voltage:AC100-240V 3,Luminous Flux (lm):8000lm 4,IPgrade:IP54 5,Warranty:2year led high ... widely used at factory. Picture: Product Introduction Material:High-purity Aluminium relfector,heat sink and hanging hookAluminium alloy ... .special design of multichip single module.Imported high brighteness semiconductor chips.High heat conductivity,low luminous decay,pure light ...