The FCCSQ610WSS cylinder is U.L. listed for wet locations. Housing is 316 marine grade, corrosion resistant, heavy walled, high pressure die cast stainless steel construction with a highly polished finish. Lens is 1/4? thick, tempered clear, heat resistant, standard and can be used as an up, down, or up/down light. Lens frame includes integral circular louver. Reflector is precision formed aluminum for maximum reflectance.