Lithonia Lighting, IBG 12L MVOLT, High Bay Fixture, Rectangular, Series: IBG, 120 to 277 VAC, 79/77 W Fixture, 175 W Lamp, 100000 hr Average Life, 4000 K Color Temperature, 80 CRI, Dimmable Ballast, Frosted Acrylic Lens, 12000 Lumens, IP5X Enclosure, Ceiling Mounting, Steel Housing Material, Gloss/White Housing Finish, 25.6 in L x 15.52 in W x 2.75 in H Dimensions