6 Pieces 4" Remodel LED Metal Can Air Tight IC Housing LED Recessed Lighting with UL Listed and Title 24 Certified &#9989; Best Quality Recessed Lighting Housing: Galvanized metal housing for maximum heat dissipation and rust protection &#9989; Recessed Housing Can That Actually Fits: Housing adjusts to 1/2" to 1 3/8" ceiling thickness. Trims are held in place with high tension clips &#9989; Certified and Trusted Ratings: ETL listed for through branch wiring &#9989; Easy Installation: fast, easy, and secure installation with Quick Connect wiring connectors INCLUDED in junction box. Please see images for more instructions. &#9989; Air Tight & IC Rated: Standard thermal protection device guards against improper installation and misuse of insulation material. Provided with air gasket to prevent airflow from heated or air-conditioned spaces. Meets or exceeds all national air flow requirements. Housing is IC rated for direct contact with insulation and can be used in IC and NON-IC applications