Dual input voltage: AC 110V/220V. Output: DC 5V 40A max, Output voltage is adjustable ±15%. IN-DOOR USE ONLY! Three sets of output Channel. With three independent output channels, it can power more devices. The maximum output of each channel can reach 40A 200W. Total output power of the three channels is 40A 200W. Works with device that draws less than 40A, such as DC 5V 1A~32A. The max use of power should be no more than 80% of the full loads 40A 200W. Over Voltage Protection, Overload ProtectionOver 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 Project, Home appliance etc. Over Voltage Protection, Overload ProtectionOver Current Protection, Over Temperature Protection Short Circuit Protection Why does the LED power supply stop working Maybe the overcurrent protective switch (in the power supply) disconnect. Pl