FeaturesEnergy efficient, sealed housingCan be completely covered with insulationMedium base porcelain with nickel plated copper screw shell22 ga die-formed galvanized steel mounting frameHousing is vertically adjustable to accommodate up to a 1 in ceiling thicknessReal Nail® 3 bar hangers telescoping system with pre-installed removable nail for repositioning and integral T-bar mounting feature for suspended ceilingsA19/R20/PAR20/BR30/PAR30/PAR30L lampsIC rating allows it to be completely covered with insulation and its energy efficient Air-Loc® installation stops infiltration and exfiltration of air, reducing heating and cooling costs