Osram 2G7 Twin Tube Shape CFL Bulb, 9 W, 2700K, Extra Warm White Colour Tone, Length: 150 mm, Incandescent Equivalent Wattage: 60W, Colour Rendering: 80, Colour Reference: 827, Diameter: 27mm, Luminosity: 600 lm, Life Hours: 20000h, MPN: 4050300017655. Average life: up to 20,000 hours. Dimmable from 100% to 3%. Single-ended four-pin plug-in 2G7 base. Suitable for operation on electronic control gear. Can be operated on battery, solar and AC power in conjunction with suitable ECGs.