Product Features : -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: Input voltage:AC 100-240V 60&50Hz Output voltage:0 ~ 30V Output current:0 ~ 5A Voltage resolution:100mV Current resolution:10mA Voltage regulation : Line regulation<5mV. Load regulation<5mV. Recovery time<500us(50% Load change, minimum load 0.5A) Temperature coefficient<100p pm/C. Constant pressure condition: Voltage stability 1%+ 3mV Load stability 1%+3mV Ripple noise :50mVrms(effective value) Constant current state: current stability 1%+ 3mV Load stability 1%+ 3mV Ripple noise :50mArms(effective value) Display Accuracy: 1%+5digits Display Resolution: Voltage: 0.1V Current:0.01A Product Dimension: Length185mm X Width 100mm X Height78mm Product Weight0.69Kg Fuse Standard3.15A Packing list: 1X Power supply 1X Power cable2X output line 1X Instruction Book 1X Box