Recessed incandescent housings for 2x8 new construction. Approved for direct burial in insulation and all ceiling and wiring types.ConstructionL7X: 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.Trim retention (clips): Retaining clips riveted to top of reflector hold trim inside housing.Trim retention (TOR): Two side-mounted torsion springs on the trim and two receiving brackets in the can, ensure a consistently tight fit with the ceiling.Suitable for ceilings up to 1-1/2" thick.