... overload, short circuit protection Modified Sine Wave 800VA Offline UPS of computer center using, AVR function, high performance transformer and MOSFET, ... are using):products inside pictures, using high quality MOSFETPCB BOARDFor computer use.UPS PACKING, inside with polyfoam protector, carton can ... *195*275Loading Quantity (1*20' container21002100210011001100 800VA offline UPS of computer backup