Air tight, IC housing for new construction. UL & CUL listed for damp locations. Meets Washington State Energy Code requirements when used with P8587-01 (gasket). With today's soaring ceiling heights, there is both a design and practical challenge to light such large spaces. With a relatively small opening, this discreet fixture solves both issues. An Air-Tight housing is designed to prevent air from the interior of your home escaping into the attic. On average, an Air-Tight fixture will save $5 per year compared to a standard fixture. Considering that your home may have 10 or more recessed lights, that's $50/year! For use in new construction or accessible ceilings. Meets Washington State Energy Code requirements (when used with P8589-01 gasket). UL and CUL listed for damp locations and through wiring.