Lemonbest Dimmable 110V 5W LED Ceiling Light Downlight, Warm White Spotlight Lamp Recessed Lighting Fixture, Halogen Bulb Replacement (1pc) Dimmable LED Ceiling Light. Input voltage: AC100-145V 50/60 Hz, Output: 5W (5*1W) 3000K Warm White; Famous 2 Pair Pure Gold Wires, not single wire of Epistar Chips Brightness Degradation Is Less Than 0.1% per 1,000 hours. 90% saving on the electricity bills, and greatly reducing maintenance cost Silver Aluminum, 48 hours aging time, Save energy, 5 steps strict quality control 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.