Halo Air-Tite 4 In. IC Rated Recessed Light Fixture 4 inch new construction IC insulation contact housing for use in insulated ceiling or for direct contact with insulation. Aluminum outer housing helps dissipate heat and double wall inner housing can be adjusted to compensate for varied ceiling materials. Self resetting thermal protector deactivates fixture if overheating occurs due to improper lamping. Got Nail bar hangers provide easy installation. Meets ASTM-E283 for air-tight construction. Recessed Size 4 In., New Construction Or Remodel New Construction, Type IC, Width 5-1/4 In., Height 6 In., Length 8-1/2 In., Bulb Type Incandescent/CFL/LED, Bulb Shape R16/R20/PAR20, Base Type Medium, Bulb Included No, Weight 2.4 Lb., Warranty 1-Year, UL Listed Yes, Pkg Qty 1