KWT-0502C specification: AC/DC simplex output l*w*h (unit: mm): 74.8*50*28.3 output(voltage/current): 3V-12V/200mA-3A power: 18W function: this product suitable for electric communication, safety against, monitoring and so on have following functions: 1, steady trustiness, small output ripple, low temperature 2, input: voltage AC100V~264V frequency47-63Hz startup impact current cold 20A/230V 3, output: voltage DC: 8V-50V/200mA-3A linearity regulation factor?.5 %max the output voltage of ripple and noise(mvp-p)<1% temperature coefficient?.02%/ startup time≤1S(AC230V input, Io=100%) keeping time≥20mS(AC230V input, Io=100%) 4, over-voltage protection115%-135%voltage nominal value 5, over loading protection105%-150%rating power off 6, insulation withstanding voltage: 3000V 7, radiator mode: self cooling 8, adapt the authentication of "CCC" "CE" 9, apperance dimension(shell): 74.8*50*28.3(mm)