Wattage for 3U/dia: 7W, 9W, 11W, 13W, 15W. Wattage for 3U/dia 12: 15W, 20W, 26W. Lamp Cap: E27/B22. Voltage: 110V/220V-240V. Frequency: 50Hz/60Hz. Color Temperature: 2,700K/4,000K/6,400K. With high quality Tri-color Tube. Life Time: 8,000 Hours.