... 2 times longer lifetime for adaptor7) Voltage optional: 110v ,120v, 220v ,230v , 240v , 277v, and 347v 8) Electronic ballast ... 38% less glass compared to T8. 15) Improved light quality, no stroboscopic flickering, which usually causes headache and irritated ... (W)power comsumption(KW/h)NotelampballasttotalT8359440.045one tubeT8/T5 adapter212230.026Electricity saving quantity(KW/h)0.019 High quality T5 ...