Dimmable electronic ballast--Power factor above 0.97;CF below 1.7; THD ... -100%Use intelligent lighting system, or use 0/1-10V dimmer to compose a small dimmable lighting systemSuit to T4,T5 ... %Dimming Stepless, smooth and no frequently glisten, EEI=A1Connect dimmer to dimming, disconnect dimmer is the brightest status, normal service conditionAPFC, high ...