Lemonbest Energy Saving Bright Dimmable Round Recessed LED Ceiling Light Lamp Flood Downlight Warm White (5 Watts) Silver Aluminum, high power new COB led chips.Size:D85xH54mm/ 3.35x2.1inches, Cut-out/open hole:69mm/2.75inch Input Voltage: AC100-145V; Output: 5W; Dimmable; Warm White 2700-3000K Brightness Degradation Is Less Than 1 per 1,000 hours. Factory directly sell. 48 hours aging time, 5 steps strict quality control. 90% saving on the electricity bills,and greatly reducing maintenance cost!