DC Power Supply(Linear)31.9V 5A Output,adjustalbe,110V/220V Input, PS305DM+ DC Power Supply (Linear model)Detailed Product DescriptionLight and Compact DesignIdeal for Education Laboratories, Safe for students to useDual channel output, the first channel is 5V fixed output; the other channel is from 0V to 30V adjustable0. 01High RegulationConstant Voltage and Constant Current OperationInternal ...