Features:This constant voltage and constant current programmable control power supply module makes analog integration and digital control functions combined in one.The output voltage is adjustable from 0V-32V/0-50.00V, the output current is adjustable from 0-5.000A/0-12.00A/0-15.00A .The module can storage 10 groups of preset value and it can quickly extract 2 groups of preset value.With LCD display and the function of voltage and current meter, you canview the preset voltage, input voltage, output voltage, preset current,output current, output power, etc.In the output state display area, it is convenient for you to know whether the output works, constant voltage/current output state, current data group extracted, etc.With advanced functions, high accuracy, wide application, the item is really practical.Specification:DPS3012Input Voltage: DC6-40VOutput Voltage: 0-32.00VOutput Current: 0-12.00AOutput Power: 0-384WVoltage Resolution: 0.01VCurrent Resolution: 0.01AIN+: Input PositiveIN-: Input NegativeOUT+: Output PositiveOUT-: Output NegativeConnecting Wire Length: 200mm / 7.87inDisplay Module Size: 80 * 42 * 45mm / 3.1 * 1.7 * 1.8inPower Module Size: as the picture showsWeight: Approx.242g/8.5ozDPS5015Display: 1.44" Colorful LCDInput Voltage: DC 6-60VOutput Voltage: 0-50.00VOutput Current: 0-15.00AOutput Power: 0-750WVoltage Resolution: 0.01VCurrent Resolution: 0.01AIN+: Input PositiveIN-: Input NegativeOUT+: Output PositiveOUT-: Output NegativeConnecting Wire Length: 200mm / 7.87inDisplay Module Size: 80 * 42 * 45mm / 3.1 * 1.7 * 1.8inPower Module Size: 91 * 67 * 40mm / 3.58 * 2.64 * 1.57inWeight: Approx.257g/9.1ozDPS5020Display: LCD Digital DisplayInput Voltage Range: DC 6.00-60.00VOutput Voltage Range: 0-50.00VOutput Voltage Resolution: 0.01VOutput Voltage Accuracy: ±(0.5% + 1 digit)Output Current Range: 0-20.00AOutput Current Resolution: 0.01AOutput Current Accuracy: ±(0.5% + 2 digit)Output Power: 0-1000WIN+: Input PositiveIN-: Input NegativeOUT+: Output PositiveOUT-: Output NegativeConnecting Wire Length: 200mm / 7.87inFixed Hole Center Distance: 86mm, 64mmDisplay Module Size: 79*43*41mm / 3.1*1.7*1.6inPower Module Size: as the picture showsWeight: Approx.257g/9.1ozPackage List:1 * Display Module1 * Power Module1set *accessories.