1001F18U Wattage: 18W Features: -Frame-In-Kit.-Material: Aluminum, Galvanized steel.-Trim Clips: ''Push In / Twist Out'' Stainless Steel clips hold reflector flush to ceiling.-UL Listed for maximum of 8 (#12ga.) through branch circuit conductors.-Adjustable speed clamps for positive attachment to grid ceiling systems.-Mounting Frame: .036'' (#20ga.).-Junction Box: 2'' x 4'' x 3-1/2'' (22cu.in.) .032'' (#22ga.).-Socket Housing: .036'' (#20ga.). Specifications: -Available in 13W, 18W and 26W wattages.-Socket: Four-pin base, molded thermoplastic socket, prewired with No. 18 AWM leads to ballast.-Ballast: 120V - 277V. Collection: -Lytecaster collection.