Using imported components high reliability. Low working temperature long service time. Wide input voltage range in accordance with applicable standards around the world. Insulation performance is good high electric strength. Short circuit overload over voltage protection function. 5~10 seconds delay detection circuit desig good to eliminate the power electricity output high voltage instability to prevent the load from the impact of the high voltage(especially LED power supply to minimize work voltage mutation caused by the light failure). Working efficiency: 82%. Easy to install. 2-year quality ensurance.