• It has the warning function of timing; • It has the function of storing the operation parameters of last time; • It can work in the constant state of voltage, or in the constant state of electric current, and it can be converted automatically according to the pre-assigned parameters for different needs; • It has the protection function when it is under the circumstances of the unloaded, overload, suddenload change and when it is beyond the limitation • Parameters can be adjusted finely during the running • Output terminals: 4 pairs in parallel• Power requirement:A.C. 220V±10% (50Hz ±2% ); • Input power: about 300 VA; • Output voltage: (6-600)V (Increase or decrease:1V/step); • Output current: (4-400) mA (Increase or decrease:1mA/step); • Output power: 240 W • Stability: constant voltage ≤1%; constant current ≤2%; • Adjustment rate:constant voltage ≤2%; constant current ≤3%; • Size(W x D x H): 235x 295 x 95 (mm); •  Weight: about 6.5 kg