International Design Registration No. DM/080 178. Crystal Cool Technology - unique Patented far infrared ceramic thermal management (67 Patents). Reduced heatsink due to CrystalCool Technology allows installation in shallow ceiling voids. Lightweight polycarbonate bezel. Downlight supplied with remote triac dimmable LED driver. Smooth and linear dimming on most triac dimmers. Life to 70% lumen maintenance - 50,000 hours. 5 Year guarantee.