UPS Ultra Power 1500VA/900W (3 steps of AVR, CPU controlled, USB) metal case

--- UPS1500ME 1500VA/900W Front Panel: LED indicators AVR: 3 steps of AVR, CPU controlled Input voltage range: 145~290Vac±5Vac Input frequency range: 50Hz / 60Hz (Auto sensing) Output voltage range: 200~255Vac Output frequency (DC mode): 50±0.5Hz / 60±0.5Hz Wave form: PWM (DC Mode) Transfer time: Typical 2~6ms, Max.10ms. 3 Germany Sockets Battery: 2 pcs*12V9Ah Charging period: 4~6 hours recover to 90% capacity PROTECTION: 1. Battery low voltage protection 2. Overload protection 3. Short cir