Lytecaster 2002P1 3.75 Inch Non-IC Standard Frame-In Kit is made of 20 gauge galvanized steel and will accommodate existing ceilings up to 1 inch thick. Non-IC designation requires that insulation must be kept a minimum of 3 inches away from housing. UL listed for damp locations. 9 5/8 inch length x 7.5 inch width. Overall height based on trim option selected. Lamp type and wattage dependent on trim kit and frame-in kit combination per attached manufacturer spec sheet. A complete fixture includes a trim kit and frame-in kit, sold separately.