IT5000CM 2.5 Inch Low Voltage Non-IC Remodel Shallow Housing is equipped with thermal protection and is designed for remodel applications. Non-IC designation requires that insulation be kept a minimum of 3 inches away from housing. Below ceiling accessible. Takes up to 7/8 inch ceiling thickness. Low voltage 12 volt magnetic transformer is included. One 20 watt, 12 volt GU4 MR11 bulb is required, but not included. Dimmable with a low voltage magnetic dimmer. Suitable for damp locations. UL listed. 2 5/8 inch ceiling cut out. 11.75 inch length x 3.7 inch width x 3.25 inch height. A complete fixture includes a housing and trim, sold separately.