LED Housing, Length 8-21/64 In., Width 11 In., Height 4-1/2 In., 15 Watts, Standards For Use With Halo LED Module and Trim LED Recessed LightingHousingsA complete fixture requires housing, light engine, and trim.AIR-TITE housings save energy by restricting airflow from living spaces to unconditioned attics or plenum. Include bar hangers with preinstalled nail and integral T-grid clip. Feature tool-free wiring outside the junction box and tool-free bar shortening, with no need to remove frames. Dimmable to 15%. 33L673 and 33L674 are non-screw base kits for use with 33L672 (see page 700). 33L673 is for new construction applications; 33L674 is for retrofit applications. 13R123 to 13R125 are 6" nominal aperture with non-screw base connectors that meet CA Title 24 requirements for non-screw base socket connections in high-efficacy luminaires. 13R115 to 13R117 are 4" nominal aperture.All are UL Listed for use in damp locations; UL Listed for use in wet locations with select trim. AIR-TITE construction meets restricted airflow requiements per ASME E-283 standard.Rated avg. life: 50,000 hr. Operating temp.: -30 to 40 C