DC Power Supply Advantage: 1.Have complete operating protection function2.Highly efficient, low ripple, small volume, light weight3.Double display voltage, current, and high precision4.Voltage stabilization, current limiting, simple operation5.Dual voltage input and convenient choice6.Temperature control fan heat dissipation, low noise7.Double potentiometer more precise adjustment More Parameters: Input voltage:AC 110V/220V 50/60HzOutput voltage:0 ~ 30V /60VOutput current:0 ~ 10A /5AVoltage resolution:100mVCurrent resolution:10mAOutput Voltage ranges from 0 to rating voltage with continuous adjustment .Voltage regulation : Line regulation<5mV. Load regulation<5mV.Recovery time<500us(50% Load change, minimum load 0.5A)Ripple & Noise<5m Vrms, 100m Vp-p Temperature coefficient<100p pm/C.Output current ranges from 0 to rating current with continuous adjustmentCurrent regulation line regulation<3mA. load regulation<3mA.Indicator MeterVoltage display precision: +-(0.5% of rdg + 2 digits).Current display precision: +-(0.5% of rdg + 2 digits).Operation Temperature & Humidity : 0 ~ 40 C, RH<80%.Storage Temperature & Humidity : -10 ~ 70 C, RH<70%.