1,Wide Input Range:AC176~264V 2,High efficiency,miniaturization 3,Protect function:short circuit,over load,overvoltage protect Main specification: ... Voltage/current:50V/40A2,Size:L200*W110*H50mm3,Steady precision:±3%4,Rippeand Noise:≤50mV5,Overvoltage protect:115%~135%(Rated output ... % loaded with aging test,make the product have high reliability. LED display panel power supply