Recessed incandescent housings 4 for 2x8 and 2x6 new construction applications. Approved for direct burial in insulation and all ceiling and wiring types. Construction: air-tight, galvanized steel pan with aluminum can and junction box with four built-in ROMEX® clamps and ground wire. Rated for 90°C. Factory-installed captive bar hangers that span up to 24 o.c. and feature stepped shank nail with integral T-bar locks. Two locking screws hold fixture position. Socket clips to trim to ensure proper and consistent lamp position. Suitable for ceilings up to 1-1/2 thick.