Built-in WMI filter anti-interference performance is good. Small DC ripple and high efficiency. Design of soft start circuit ac surge current limit. Low working temperature long service life. In the wide voltage range in line with the global standard. Insulation performance is good high electric strength. With short circuit overload over voltage protection function. Overload protection: 105% ~ 105% (rated load) Over voltage protection - 15%~135%(rated output voltage); Short-circuit protection-self-recovery