Lemonbest Dimmable 110V 4W Led Ceiling Light Downlight Recessed Lighting Fixtures Kit, Cool White Dimmable LED Ceiling Light. Input voltage: AC100-145V 50/60 Hz, Output: 4W (4*1W) 6000K Cool White; Famous 2 Pair Pure Gold Wires, not single wire of Epistar Chips Brightness Degradation Is Less Than 0.1% per 1,000 hours Silver Aluminum, 48 hours aging time, Save energy, Halogen Replacement 90% saving on the electricity bills, and greatly reducing maintenance cost