The Lytecaster 2002P1 3-3/4 in Non-IC Standard Frame-In Kit is made of 20-gauge galvanized steel and accommodates existing ceilings up to 1 in THK. Non-IC designation requires that insulation must be kept a minimum of 3 in away from housing. UL listed for damp locations. Overall height based on the trim option selected. Lamp type and wattage are dependent on the trim kit and frame-in kit combination per the attached manufacturer's spec sheet. A complete fixture includes a trim kit and frame-in kit, sold separately.