For outdoor or indoor lighting use May be used with Bell cluster covers and boxes For use with 75-150 Watt Par 38 lamps Rugged metallic construction State-of-the-art powder coat finish provides maximum weather ability and scratch resistance Locking swivel knuckle assures positive lamp positioning and provides pin point directional aiming Extra long wire leads for easy hook-up Each lampholder socket supplied with a porcelain socket, inside gasket, 1/2 inch locknut, and multi-lingual instructions Gray