Juno Lighting IC25S 5-Inch IC Rated Shallow Incandescent Universal Housing with Real Nail 2 IC-rating allows housing to be completely covered with insulation Housing is vertically adjustable to accommodate up to a 1-Inch ceiling thickness When used with Air-Loc gasket (ALG5, sold separately), stops the movement of air, in or out, reducing heating and cooling costs Thermally protected against the improper use of bulbs UL Listed, C-UL/CSA certified for damp and wet locations