Lemonbest Dimmable 5W LED Ceiling Light Spotlight Recessed Downlighting fixture, Cool White Famous 2 Pair Pure Gold Wires; 5 Epistar Chips; Silver Aluminum Dimmable LED Ceiling Light. Input voltage: AC100-145V 50/60 Hz, Output: 5W (5*1W) Brightness Degradation Is Less Than 0.1% per 1,000 hours; Energy Saving,90% saving on the electricity bills,and greatly reducing maintenance cost Factory direct sales; 48 hours aging time, 5 steps strict quality control, 2 year warranty (free replacement) from Lemonbest Common problem resolution: If the light cannot be dimmed normally, the problem is very likely to be your dimmer, please use a led dimmer to try it again or contect us directly.