Recessed light fixture for new construction. Features thermally protected housing, adjustable socket bracket, pre-installed captive bar hangers, score line provided for field shortening to 12 inch joists, arrowhead design provides nail-less installation, and hangers to fit onto T-bar spline for quick alignment. Can be permanently secured with optional model No. TB7 T-bar clip. UL (Underwriter's Laboratories) listed for through branch circuit wiring, damp location, or where insulation can be kept 3 inches from housing. 7-1/2 In. W. x 10-1/2 In. L. x 6-1/2 In. D. ceiling opening. Bulk contractor packs, no broken cartons.