The Smart Power 650VA - 390-Watts Short Backup UPS is a power backup system designed to provide reliable power protection for computers and other electronic equipment during power outages or brownouts.

This UPS features a capacity of 650VA (or 390 watts) and can deliver up to 390 watts of power to connected devices during an outage. It also includes an AVR (Automatic Voltage Regulator) that stabilizes the voltage output to protect equipment from voltage fluctuations.

The short backup time feature of this UPS means that it is designed to provide temporary power to connected devices for a limited amount of time. This makes it suitable for use in situations where power outages are infrequent or where equipment can be shut down safely during an outage.

Other features of the Smart Power 650VA - 390-Watts Short Backup UPS include an audible alarm that alerts users to power outages and low battery levels, as well as surge and spike protection to guard against power surges and voltage spikes.

Overall, the Smart Power 650VA - 390-Watts Short Backup UPS is a reliable and affordable option for providing backup power to essential electronic equipment in the home or office.