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. With 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.