2U energy saving CFL color temperature: 2700K/4200K/6400K wattage: 5w/7w/9w/11w/ ... ,ICC,UL,CSA2.High luminous efficiency,no flash3.Long service life, 8000~10000hours4.More efficient in energy saving,80% more energy saving than common bulb5 ... /E27 E14/E27 Lumen(Lm)176 286 405531 663 798 Energy label(class) AA A AA A Dimension(L1/L2/D1 ... 1/50 1/501/50 1/50 1/50 2U CFL Energy Saving Lamps 7w