This JCC JC010010/NB Fireguard Fire Rated Downlight is designed for fire safety and comes without a bezel and lamp, which are available for separate purchase. It features a slim profile and cast aluminum panels specially developed for LED lamps. The downlight fitting is ultra-fast and uses a latching endless loop system. It has been tested for use in solid, I-beam, and steel ceilings, and is thermally tested for use with mineral wool insulation. Dimensions: 87mm diameter x 109mm depth. Requires a 74mm diameter cut out. Minimum void depth required is 150mm.