The FCSL407 Step Light is a 7.125″ round stainless steel fixture with protective guard over opal lens. It’s U.L. listed for interior and exterior wet location applications. The housing is marine grade, corrosion resistant, heavy walled, high pressure die cast aluminum, that’s constructed with (2) 7/8″ KO. Back boxes can be used for concrete pour and masonry applications. We offer the back boxes to be shipped early for concrete pour application setup. The marine grade stainless steel face plate gives a polished look while providing a long lasting finish and protective lens guard. The white lens is 1/8″ thick, tempered, heat resistant glass and adds a softer illumination reducing glare.