Use in high-mounting heights that require high efficiencies and horizontal illumination. Ideal for general manufacturing areas, storage areas and warehouse aisles. Attributes: Distributor pack consists of ballast housing, reflector, door lens and lamp together in one carton. Construction: Housing – Heavy-duty, die-cast aluminum halves. Ballast and electrical components are heat-sinked and horizontally opposed.Integral splice box mounting flange ensures structural integrity. Finish: Housing – Electrostatically applied white polyester powder paint. Optical system: High-efficiency, anodized, spun aluminum reflector features exclusive contoured design that minimizes color shift. Self-cleaning ventilated design carries contaminants out of the top of the reflector. Electrical system: Ballast: All ballasts are 100% factory tested. HPS: Constant wattage autotransformer; MH: Super CWA Pulse Start ballasts, 88% efficient and EISA legislation compliant, are required for 250-450W (must order SCWA option) for US shipments only. CSA, NOM or INTL required for probe start shipments outside the US. Socket: Vertically oriented mogul base protected exculisionary base “PINK” socket with copper alloy nickel plated screw shell and center contact. For use with “O” rated protected metal halide lamps only. Installation: Pendant Splice Box – Removable cast-aluminum box slides on integral die-cast aluminum housing mounting flange and mounts to ¾” pendant conduit prior to ballast housing installation. Matching wire access cover accepts Reloc modular wiring. Complete assembly meets or exceeds UL 50-pound pull test. Optic Mounting – Reflector mounting brackets are progressively die-formed of 18-gauge galvanized steel. Listings: UL listed -30°C to 55°C ambient operations damp locations. UL Listed to US and Canadian Standards. NOM Certified.