... saving 80% energy.2.Adopt high quality semiconductor electronic component,make highly use of the energy,long ... 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 ... other electrical equipment.5.Can be widely used in T5,T8,T12,H Tube.6.The electronic ...