Power Compact 40, 55, 65 watt, 1 lamp (# APF120-1/55PL). Lamp type: 2 - Power Compact 40, 55, and 65 watt, 120 volt. Socket included (4 pin square), can be removed and a 2G11, 4 pin straight installed (See - Sockets and Connectors). Certification: UL, cUL, Crest Factor <1.70, Power Factor - 0.99, Ballast Factor - 0.88, Sound Rated A, Outdoor Type 1. Minimum start temperature 0º F. Dimension: Length - 9.50" (includes mounting tabs), Width - 1.63", Height - 1.13". Item # APF120-1/55PL.