Maxtron 1200VA Line interactive UPS provides emergency power that keeps appliances connected to it running, at least, for a short time when the input power source or mains power fail.  This UPS is typically used to protect and power certain equipment such as Personal Computers, Televisions, Decoders, POS etc.  It provides comprehensive protection to valuable equipment from power surges and spikes and also provides pure voltage with boost and buck AVR.