ACUITY 554510 400W 120/347V Lithonia Lighting Pulse Start Hook & Cord Metal Halide Housing High Bay, White

For high mounting heights that require higher efficiency, general horizontal/high vertical illumination and premium contrast control. Ideal for light manufacturing areas, warehouse and re-tail aisles. Housing – Rugged, heavy-duty, die-cast aluminium with white polyester powder finish. Electrical components horizontally opposed and heat-sinked to ballast housing for cooler operation.Ballast – 100% factory tested. High power factor ballast with a minimum of class H insulation. Optics – UV-stabilized, high-efficiency, high-performance acrylic reflector yields high vertical foot candles while maintaining low brightness.Optical assembly is fully adjustable accommodates a range of light distributions, while providing approximately 15–20% uplight. Open optical are self cleaning – ventilated design carries contaminants out top of reflector. Enclosed optical utilizes clear, tempered-glass lens. Hinged and latched for easy maintenance. Coated lamps provide optimum performance.Socket – Glazed porcelain, vertically-oriented,mogul-base socket with copper alloy, nickel-plated screw shell and center contact. Protected version with pink exclusionary socket. UL Listed 1500W, 600V, 4KV pulse rated. Installation – Pendant splice box (PSB) threaded for ¾” conduit (standard). Other mounting options available. Protect reflector from break. Use full wire guard (FWG) option for areas where reflectors are susceptible to impact. UL Listed to U.S. and Canadian safety standards. NOM Certified. UL Listed for damp locations.