The Power Guard 650VA CS Offline UPS comes with Automatic voltage regulation(AVR), High/ Low Voltage Protection, Overload/ Short Protection Cool features. The Power Guard UPS featured an input voltage range of 145-280VAC and a frequency of 50/60Hz+/-5% and also it offers an output voltage of 220/230VAC+/-10%. It has a transfer time of 2~6 ms (Typical) and a Pure Sine Wave. The Power Guard 650VA UPS is equipped with a Lead-Acid Maintenance-Free battery. It takes a recharge time of 6 hours up to 90% capacity. It can deliver a backup time of 05-40 mins (Depending on load). This UPS indicates AC Mode with Green lighting, Battery Mode with Red lighting, and Over Load Yellow lighting, which helps you to identify the UPS status. The Power Guard 650VA CS Offline UPS comes with a 1-year warranty.