1.Constant Power output. 2.Support for the majority of available dimmers (e.g. TRIAC, transistor). 3.In the dimming range, all the input LED current ripple and current are constant ,the voltage is stable, no flicker, we can greatly extend the life of our lamp. Dimming range is between 5% -100% (Due to working current calculation), PFC0.8 (full-bright state test).