The Amplon N Series UPS is a true on-line, double-conversion 1kva UPS, 2kva UPS, or 3kva UPS 

housed in a compact tower. Double-conversion UPS systems are lighter in weight than other types 

of UPSs and can regulate output frequency from 50 to 60 hertz. The power-factor correction functions 

of such systems enable them to draw current from an AC line as smooth sine waves, instead of as pulses.