HID Lighting Ballast Body, Type Ballast Body for Glass Globe, Ballast Type Pulse Start, Lamp Type Pulse Start Metal Halide, Lamp Wattage 250 W, Ballast/Line Voltage 120/208/240/277/480 VAC at 60 Hz, Housing Material Die-Cast Copper-Free Aluminum, Finish Epoxy Powder Coated, Approval UL 1598/1598A/844/60079-0/60079-15/E10444, Constructional Feature Dusttight, Moisture Resistant, Weatherproof, Enclosure Type Class I Div 2 Group A B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 4X, IP66, Minimum Power Factor 90 Percent