Dual input voltage: AC 110V/220V. Output: DC 24V 20A 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 20A 480W. Total output power of the three channels is 20A 480W. Works with device that draws less than 20A, such as DC 24V 1A~16A. The max use of power should be no more than 80% of the full loads 16A 384W. Over Voltage Protection, Overload Protection Short Circuit ProtectionOver Current Protection High quality Widely used in Industrial automation, electronic equipment, LED display, LED Lighting, LED Strip, CCTV cameras Security System, Radio, 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. Please unplug your AC