Columbia Lighting Wraparound Fixture, Instant Start Low Profile, Series: AWW, 120 to 277 VAC, T8 Fluorescent Lamp, 32 W Lamp, Bi-Pin Lamp Base, 4 Lamps, White Light, 4-Lamp Electronic Instant Start Ballast, Clear Acrylic Prismatic Diffuser Lens, 11600 Lumens, Surface Mounting, Steel Housing Material, Baked Enamel Housing Finish, 4 ft L x 14-5/8 in W x 2-11/16 in H Dimensions