9-32 Volt Built from extremely tough extruded aluminium with virtually unbreakablepolycarbonate lenses industrial strength multi-angle bracketry and stainless steelfittings. The bars are assembled within an E.S.D protected environment to maximisethe life of the L.E.D resulting in life expectancy in excess of 50 000 hours. Fullysealed and submersible the lamps have an IP66 and IP68 rating.