Check the listing for details. TekPower TP3003D-3 Digital Variable Triple Outputs Linear-Type DC Power Supply. Condition: New. Listed at 169.99 USD. The Tekpower TP3003D-3 variable DC power supply is a compact and affordable instrument that is suitable for both home and industrial use. This digital DC power supply has a total of three DC outputs, two of them have a maximum output voltage of up to 30 volts and current up to 3 amps, they may also be connected in series or in parallel for higher voltage or current; the last one has an output voltage of 5V and current up to 3 amps. It comes with rotary switches for setting up the voltage and current. With its reliability and versatility, it's an invaluable and indispensable tool for testing, science project and etc., ideal for labs, research institutes, R & D facilities.Specifications:Output DC Voltage: 0.0 – 30.0VOutput DC Current: 0.00 – 3.00 AInput Voltage: 110V/AC, 60HzVoltage and Current adjustmentVoltage regulation: CV