... : 110v ,120v, 220v ,230v , 240v , 277v, and 347v 8) Electronic ballast provide constant light output for mains voltage of 156 ... , 38% less glass compared to T8. 15) Improved light quality, no stroboscopic flickering, which usually causes headache and irritated eyes ... tubeT8/T5 adapter212230.026Electricity saving quantity(KW/h)0.019 High quality T5 adapter energy saving electronic fluorescent lamp