LTO1044: Features: -Frame-In-Kit.-Material: Galvanized steel.-Accommodates all ceilings up to 1 thick.-Four slots are positioned 90 apart to simplify alignment.-Push-in/twist-out rotoclips hold reflector flush to ceiling.-Attaches to wood joist without need of accessories.-Socket Housing: Impact extruded aluminum or galvanized steel.-Socket: Porcelain medium base; nickel plated screw shell.-Mounting Bars: .059 (#16 ga.).-Junction Box: 4 x 3 1/2 x 2; .063 (#14 ga.).-Pre-wired with #18 ga.-SF1 leads to junction box. Dimensions: -13 long bars extend to 27 with integral nailing tabs. Collection: -Lytecaster collection. Also known as -Lytecaster 5 Aperture Incandescent Standard Frame-In-Kit-Lytecaster 5" Aperture Incandescent Standard Frame-In-Kit