Keystone Technologies, KT-HBLED80-1.5F-850-VDIM-P /G2, High Bay Fixture, Series: KT-HBLED, 120 to 277 VAC, 80 W Fixture, LED Lamp, 151 Lumens/W Light Output, 50000 hr Average Life, 5000 K Color Temperature, > 80 CRI, 0 to 10 V Dimming Ballast, Frosted Lens, 11778 Lumens, V-Hook/Chain Mounting, 2.40 in H x 15 in W x 17.30 in L Dimensions,