Housing and cover are die formed of 26 gauge cold rolled steel. Unit comes fully assembled. Suspended mounting only with included chain. Minimum spacing from ceiling surface is three inches. Housing interior is high reflective white polyester paint and exterior finish is Silvadillo polyester paint. Uses (2) T12 or T8 48" lamps. Quiet running premium electronic ballast. 0 degree cold start-up. Downward facing pull chain for on/off function. UL listed. 5 foot cord and 3 prong plug included.