Calculite Evolution C3ALV 3 Inch AirSeal Non-IC New Construction Frame-In Kit with magnetic transformer. Non-IC designation requires that insulation must be kept a minimum of 3 inches away from housing. AirSeal minimizes air leakage to less than 2 CFM at 1.57 PSF. Includes 120/277 volt magnetic transformer. One 42-65 watt, 12 volt GU5.3 MR16 halogen lamp is required, but not included. Lamp wattage restriction: 65 watt for up to 1 inch thick ceiling and 50 watt for greater than 1 inch up to 2 inch thick. UL listed for damp locations. 14.4 inch width x 9.6 inch depth x 5 inch height. A complete fixture includes a frame-in kit and a trim, sold separately.