Technical parameters:
Power input :85-139V AC (50/60Hz)
Maximum output: DC 8A 75V
Frequency compensation: built-in engine rpm when the output voltage drop in the frequency of fall protection circuit
Adjusted rate: better than 0.5% 

others provided as follows :

SX440  AS440  MX321  MX341  SX460  R250  R438  R448  R449  SR7 

VR6    H3500   EA05A  DVR2000E   GAVR 8A  GAVR 12A  GAVR 15A