1. Provide Line-Interactive design and true sine wave out put 3. Equipped with Boost and Buck AVR to stabilize input voltage 4. User configurable input voltage range and output voltage 5. DC start function enables UPS to be started up without AC power supplied 6. Largebuilt-in charger with power factor corrected 7. Enable to extend runtime with scalable external battery pack 8. Fully protection for overload, short-circuit and over temperature 9. RS232 & dry contact signal for power management software 10. SNMP card slot is available for 2KVA above