... according to the pre-assigned parameters for different needs;* DYY-11 has the protection functions of over voltage,short circuit, ... overload, sudden load change, unloaded , leaks electricity, etc.;*DYY – 11 has the function of memory for convenient use and programming ... 500 VA;*Output voltage: (4-1000)V (Increase or decrease: 1V/step);*Output current: (4-500) mA (Increase or decrease: 1mA ...