... 3.High power factor,Low THD ,the electronic ballast can work steadily when the voltage ... The electronic ballast works in high frequency beyond 20KHZ,quietly, no negative effect on the circuit ... or other electrical equipment.5.Can be widely used in T5,T8,T12,H Tube.6.The electronic ... ballasts have CCC,CE,RoHsPower 1×40W Power factor 0.95 Electronic ballast For circle tube