... output core of DYY-12, high output power,high capability of load,high precision of the ... constant voltage,constant electric current and constant power can be converted into one another to ... : 4 pairs in parallelSpecifications:Power source: A.C. 220V±10% (50Hz±2%);Input power :about 600 VA;Output voltage ... 4 -400)mA, (Increase or decrease: 1mA/step);Output power: (4 - 400)W, (Increase or decrease: 1W ...