2004ICV Lytecaster 3.75 Inch MR16 IC New Construction Housing is made of aluminum and galvanized steel and will accommodate existing ceilings up to 1 inch thick. IC designation allows for direct contact with insulation. AirSeal housing minimizes air leakage to less than 2 CFM. Includes 12 volt magnetic transformer. Removable from below. UL listed. Suitable for damp locations. 15.6 inch width x 10.4 inch depth x 7.25 inch height. Lamp type and wattage dependent on trim and frame-in kit combination per attached manufacturer spec sheet. A complete fixture includes a frame-in kit and a trim kit, sold separately. Dimmable with a low voltage magnetic dimmer when using a halogen MR16 lamp.