Single Output DC Power Supply, Output Volts (DC) 3 to 15V, Output Current (Amps) 0 to 40 A, Current Limits 1 Percent to 100 Percent, Ripple Volts Regulation 10 mVrms, Line Volts Regulation 80mV (+/-10 Percent variation), Load Regulation +/-230 mV (0 to 100 Percent Load), Line Regulation 80 mV ( +/-10 Percent Variation), Meter Type 2 Digital, 120V AC Input Voltage, Input Frequency (Hz) 60 Hz, Overload and Short Circuit Protection, Parallel or Series Connection, Display 3 Digit LED