1,Square LED Downlight 2,Certificate:CE,ROHS, C-Tick, ... Outstanding Performance: High lumen output, Effiecent > 80% , PF > 0.9, Life Span > 50,000 hours.Specification1) Product Number: BL ... Working with PMW dimmers on market, not particularly for LED light.4) Input Voltage: 85-145V AC or 190 ... ,45,60 degrees7) CRI: Ra> 808) Power Factor: >0.99) Dimmability: compatible with TRIAC dimmers on market such as ...