3" Low Voltage IC Air Tight cans and trims for New Construction.The housings include Dimmable transformer for Low Voltage MR16 Lamps and come pre-wired with a snap in J-box. All housings that are IC rated can be used in direct contact of insulation.UL Listed for feed through wiring and damp location.Accomodates up to 50W 12V MR-16 with proper lamp.