Non-IC rated universal housing. Designed to be installed in non-insulated areas or where installation is spaced at least 3" from housing. Medium base porcelain socket with nickel-plated copper screw shell. Drop socket with spring to accommodate various trim installations. Pre-wired J-box with five 1/2" knockouts. Housing is fully assembled. Non-IC rated universal housing. Housing is fully assembled. 12 3/4" wide. 7 1/2" high. 5" opening.