Wattage: 13W,15W,18W,20W,22W,24W,26W,28W Color temp: 2700K - 6400K Base: E27/ E26/E14/B22 Life Hours:6000, 8000 Voltage: 100-130V/60Hz or 220-240V/50Hz Tube diameter: 12mm Turns: 2,2,2.5,3,3.5,3.75,4,4.5