Diffuser:White Frosted Diffuser, Finish:Satin Nickel, Ballast:Electronic HPF 120V 60Hz AC, Light Bulb:(4)32w T8 Med Bi-Pin Linear Fluor Geometric linear curved diffuser with distinctive details provides visual interest to this surface mount fixture. Contemporary decorative pattern on curved white frosted diffuser. 120-277V Universal Voltage ballast. Can be used in various applications including corridors, offices, conference rooms, and classrooms. Channel is die-formed of 22-gauge steel. Standard mounting holes are provided. Brackets are die cast metal and ends are stamped steel. Fixture mounts to standard junction box (not included). Power supply connections can be made inside the fixture wiring channel or in the junction box.