Day-Brite Baymaster 1000 High Bay Fixture, 120/277 V AC, 178 W Fixture, 9.5/5.5/4.8/4.2 A, 1000 W Lamp, Mogul Lamp Base, Constant Wattage Autotransformer (CWA) Ballast, Suspended Mount, Metal Housing, Corrosion Polyester Housing, 23-7/8 in L x 24 in W x 2-7/8 in H