Double lampholder with cover has 180 adjustable head with positive locking, threaded for 1/2'' outlet, 6'' wire leads and porcelain socket. Installs on 3'' or 4'' recessed box or surface-mount weatherproof box. Made of corrosion-resistant aluminum, finished with a protective color coating. Uses up to two 150W PAR 38 floodlight bulb, 120V. For wet locations. UL listed. No. 5917-1: (5621-5) gray No. 5917-4: (5621-6) white No. 5917-6: (5621-7) bronze