Lemonbest Super Bright 7 Watts COB LED Ceiling Light Downlight Warm/Cool White Spotlight Lamp Recessed Lighting Fixture, Halogen Bulb Replacement (Warm white, Dimmable) Size: D109x H70mm/4.3x2.76IN; cut-out/open hole: 89mm/3.5inch Silver Aluminum, high power new COB led chips. Input Voltage: AC100-245V 50/60Hz Output: 7W; Warm White 2700-3000K/Cool white 6500-7000K 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!