... ±3KHz8,duty cycle:70%(full of normal operating voltage and current);9,overall efficiency:92±5%function & primary material1,this ... soft start/stop capacity;2,this product with stabilized voltage/current function;3,this product with protected functions of over-voltage ... with(Tmax:99h99m)manual time setting function; 6,output voltage ,current , time are all digital measurement and showing;7,cooling-down ...