About this item Dual input voltage: AC 110V/220V. Output: DC 12V 15A max, Output voltage is adjustable ±15%. IN-DOOR USE ONLY! Two sets of output channels. With two independent output channels, it can power more devices. The maximum output of each channel can reach 15A 180W. Total output power of the two channels is 15A 120W. Works with devices that draw less than 15A, such as DC 12V 1A~12A. The max use of power should be no more than 80% of the full loads 15A 180W. Over Voltage Protection, Overload Protection, Over Current Protection, Over Temperature Protection, Short Circuit Protection. High quality, widely used in industrial automation, electronic equipment, LED display, LED lighting, LED strip, CCTV cameras security system, computer projects, home appliances, etc. Why does the LED power supply stop working? Maybe the overcurrent protective switch (in the power supply) disconnected. Please unplug your AC cable, it's important! Then wait about 10 minutes. It will auto recover. Then