Surface mount version features a contoured thermoplastic housing, with universal mounting capability. Recessed version features heavy-gauge galvanized steel backbox with integral mounting channels for ease of installation in most ceiling types. UV-stabilized thermoplastic housing with a UL 94 V-0 rating. Meets UL 924, NFPA 101, NEC and OSHA illumination standards. 5-year warranty on housing and electronics.