Switching DC Regulated Power Supply with USB Interface DC Power Supply Advantage 1.Have complete operating protection function 2.Highly efficient, low ripple, small volume, light weight 3.Double display voltage, current, and high precision 4.Voltage stabilization, current limiting, simple operation 5.Dual voltage input and convenient choice 6.Temperature control fan heat dissipation, low noise 7.Double potentiometer more precise adjustment More Parameters Output Voltage ranges from 0 to 30V with continuous adjustment . Output Current ranges from 0 to 10A 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 adjustment Current regulation line regulation<3mA. load regulation<3mA. Indicator Meter Voltage 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%. Input voltage AC 220V 50Hz Output voltage 0 ~ 30V Output current 0 ~ 10A Voltage resolution 0.01V Current resolution 0.001A