For entrances, stairwells, corridors and other pedestrian areas. Construction: Rear housing is rugged, corrosion-resistant, die-cast aluminum. Front cover is one-piece UV-resistant injection molded polycarbonate, internally painted. Captive external hardware is specially treated for corrosion resistance and includes slotted hex-head and tamper proof fasteners. Finish: Dark bronze (DDB) corrosion-resistant polyester powder. Optical system: One-piece die-formed reflector is diffused aluminum. Refractor is clear UV stabilized polycarbonate. Front cover is sealed and gasketed to inhibit the entrance of outside contaminants. Electrical system: Ballast: Metal halide: high reactance, high power factor. HPS: 35S, 50S, 70S, 120V are reactor, normal power factor. 100S 120V is reactor, high power factor. High reactance, high power factor (XHP) optional for 50S, 70S and 100S, 120V. 208, 240, 277, 347 and TB are standard XHP. Ballasts are 100% factory tested. UL listed 660W, 600V and 4kV pulse rated. All components are heat-sinked directly to the cast housing for maximum heat dissipation. Socket: Porcelain, horizontally oriented medium-base socket with copper alloy, nickel-plated screw shell and center contact. Installation: Mount to any vertical surface or to a 4 round square outlet box. Back access through gasketed slot. Top wiring access through 1/2 threaded conduit entry. Through-wiring requires use of a conduit tee. Photocells are field-installable. Listing: UL listed for wet locations. IP65 rated. UL Listed to US and Canadian safety standards. NOM Certified.