Fluorescent safety and security light is made if rugged die-cast aluminum housing for years of service. Use where energy efficiency and light color are important. Features include nighttime On/daytime Off (replaceable button type photo control), easy installation; mounting pattern included. Fixture operates on standard 120V 60 Hz household current. Replacement bulb: 4U 65W mogul base, bulb included. cULus listed for wet location use.