RAB, P1S, Sport Light, 120 to 277 VAC, 500.1 W Fixture, LED Lamp, 500 W Lamp, 133.9 Lumens/W Light Output, 100000 hr Average Life, 5700 K Color Temperature, 76 CRI, Class 1 Constant Current/0 to 10 VDC Dimming Driver Ballast, Polycarbonate Lens, 66951 Lumens, IP65 Enclosure, Trunnion Mounting, Die Cast Aluminum Housing Material, Black Housing Finish, 17-13/16 in H x 24-7/16 in W x 20-1/8 in L Dimensions,