... is low,saving 80% energy.2.Adopt high quality semiconductor electronic component,make highly use of the energy,long life span is average ... about 20000Hrs.3.High power factor,Low THD ,the electronic ballast can work steadily ... 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