4u energy saving lamp,4u cfl,4u lamp,4u light 35W,45W,55W,65W,75W,85W95W,105Wetc. 4U Energy Saving Lamp,4u cfl,4u lamp, 4u lightFeatures:1)Optional power:35W,45W,55W ... :50/60HZ4)Life-span:5000-8000hrs.5)Color Temperature:6400K6)Energy saving is 80% more than other common bulbs7)Service life:8times ...