Features 85V—265V wide range AC power input. Build-in 700V power transistor. Internal integrated high voltage starting circuit, no need for additional resistance. Internal 16mS soft-start circuit. Internal power compensation circuit to keep the stability of max. output power in both high and low voltage. Patent dynamic self-power supply, no need for auxiliary winding. Internal frequency modulation circuit to reduce EMI filter cost. Over current, Over loading, Over temperature, Over voltage and Short circuit