Lemonbest&reg; Hight bright 9W LED Ceiling Light Downlight, Warm White Spotlight Lamp Recessed Lighting Fixture, Halogen Bulb Replacement High Bright 9W LED Ceiling Light. Input voltage: AC100-245V 50/60 Hz, Output: 9W (9*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 using a dimmer switch to control this non-dimmable lamp, the lamp may flicker or not top bright. Please try a normal on/off switch. Or contact us directly.