... is from 10%~100%, no flickering.* Outstanding PerformanceEffiecent > 80% , PF > 0.9, life span > 50,000 hours.ApplicationDesktop, Aisle, showcase, residential ... ) Beam Angle : 15,25,45 degrees6) CRI: Ra> 807) Power Factor: >0.98) Dimmability: compatible with TRIAC dimmers on market such as ... XR by 7~10%, and with lower price trend. Dimmable high power led lamp