... saving 80% energy.2.Adopt high quality semiconductor electronic component,make highly use of the energy,long life ... 20000Hrs.3.High power factor,Low THD ,the electronic ballast can work steadily when the voltage range ... varies from 77V-277V.4.The electronic ballast works in high frequency beyond 20KHZ,quietly ... in T5,T8,T12,H Tube.6.The electronic ballasts have CCC,CE,RoHs,EMC certificate. ...