Housing: Die-cast and extruded aluminum.External Screws: Stainless steel.Lens: Clear glass.Gaskets: One piece silicone.Reflector: High purity aluminum, semi-specular finish.Finish : Matte black, gray anthracite or light gray.Drivers: HPF electronic driver, 120-277V.Minimum Starting Temperature: -20°C (-30°C for LEDs).Mechanical: Mounts directly over a standard electrical junction box (by others). Mounting hardware (by others).Approval: ETL for wet location, IP65.