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