... .DC-30V/2A single variable output 2.w/ 5V 2A fixed output 3.Overall protection 4.CE Approval DC power supply ... +3mVRipple& noice<1mV(rms) Display error <0.5% +1 digit Fixed output Output votlagefixed 5V/3.3V Output current1A Source regulation ... supply,0-30V/2A continuously variable single output, w/ 5V2A fixed output