full spiral CFL bulb:with excellent tricolor tube,U/spiral/lutos/ ... ,RoHS,no flick,eyes friendly full spiral CFL bulb:Usingexcellent tri-color tube, high lumence, low light recession, no flick, eyesfriendly, environment ... : 9mm, 12mm, 14.5mm, 17mmAppliedfor shops, houses, hotels, offices, etc. full spiral CFL bulb