Emark UPS 650VA is a single-phase input/ single-phase output Line-Interactive UPS system with PROLiNK’s latest Super-Fast Charging technology. This cutting-edge technology is able to recharge the battery back to 90% of its capacity within 2-4 hours, and is ideal for providing stable backup power to home/ small office applications. Emark UPS 650VA has A wide input voltage range is supported due to the integrated 3-Step AVR which features 2 boosts and 1 buck to regulate output voltage. This prevents under voltage brownouts and over voltage surges. The unit also comes with universal sockets to provide better compatibility with a wider range of devices.