Constructed of heavy galvanized steel. A thermal protection unit is included standard on all recess canopy fixtures. The door frame is attached with captive stainless steel screws. High temperature, silicone foam gasket. Flat glass lens is diffused and tempered. Type V Square Optic. Medium or mogul base pulse rated socket, where applicable. Available with 50W-250W Metal Halide and 50W-250W High Pressure Sodium light sources. Durable powder coat finish. Standard white color with custom colors available.