... 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, ... Can be widely used in T5,T8,T12,H Tube.6.The electronic ballasts have CCC,CE, ... 2×40W Current 0.36AVoltage 220V Frequency 50/60HZPower factor 0.99 THD less than 10% 77V-277V multi voltage electronic ballast ...