Keystone Technologies, KT-HBLED215PS-2FB-8CSD-VDIM-P, High Bay Fixture, Series: KT-HBLED, 120 to 277 VAC, 215 W Fixture, LED Lamp, 139, 140 Lumens/W Light Output, 50000 hr Average Life, 4000/5000 K Color Temperature, > 80 CRI, 0 to 10 V Dimming Ballast, Frosted Lens, 24400, 24500 Lumens, V-Hook/Chain Mounting, 1.89 in H x 11.81 in W x 24.80 in L Dimensions,