IC-rating allows housing to be completely covered with insulation * For applications where the back side of the ceiling is not accessible * When used with Air-Loc gasket (ALG6R, sold separately), stops the movement of air, in or out, reducing heating and cooling costs * Shadow-free, knife-edge trim design blends smoothly in to the ceiling and allows architectural continuity with a wide variety of trims * UL Listed, C-UL/CSA certified for damp and wet locations