Ideal for use in new construction. Thermally protected housing, adjustable socket bracket. Slide-N-Side connectors allow nonmetallic sheathed cable to be installed without tools and without removing knockouts. UL (Underwriter's Laboratories) listed for through branch circuit wiring, damp location, for direct contact with insulation, IP rated, CSA certified. 10-1/2 In. L. x 7-1/2 In. W. x 6-1/2 In. D. ceiling opening. Bulk contractor packs, no broken cartons.