Metal halide safety and security light is made of rugged die-cast aluminum housing for years of service. Use where energy efficiency and light color are important. Features include nighttime On/daytime Off (twist-lock photo control), easy installation; mounting pattern included, 24'' extension arm included. Fixture operates on standard 120V 60 Hz household current. Replacement bulb: 70 W M98 medium base ED-17 metal halide, bulb included. cULus listed for wet location use.