2003R Lytecaster 3.75 Inch Non-IC Remodel Housing is made of 22 gauge galvanized steel and will accommodate existing ceilings up to 2 inch thick. Non-IC designation requires that there be no contact and at least 3 inch spacing from insulation. UL listed for damp locations. 11.5 inch width x 4.1 inch depth. Lamp type and wattage dependent on trim kit and frame-in kit combination per attached manufacturer spec sheet. A complete fixture includes a frame-in kit and a trim kit, sold separately.