model: KWT-K12015B specification: AC/DC simplex output l*w*h(units:mm): 73.5*28*44.5 output(voltage/current): 12V/1-1.7A power: 18W function: this product suitable for communication, safety against, monitoring and so on have following functions: 1, steady trustiness, little output ripple, low temperature 2, input: voltage AC100V~264V frequency47-63Hz startup impact current cold state20A/230V 3, output: voltage 12V/1-1.7A linearity regulation factor?.5 %max the output voltage of ripple and noise(mvp-p)<1% temperature coefficient?.02%/ startup time≤1S(AC230Vinput, Io=100%) keeping time≥20mS(AC230Vinput, 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): 70*28*41mm)