... tri-color tube, high lumence, low light recession, no flick, eyesfriendly, environment friendly, more safety, save 80% energy, safe performanceaccords with ... international standards, with certificate of CE, RoHs, ISO 9001:2000Main shape:2U, 3U, 4U, spiral, lotus, ... 12mm, 14.5mm, 17mmAppliedfor shops, houses, hotels, offices, etc. spiral energy saving lamp