--- UPS3000 3000VA/1800W Front Panel: LCD Display AVR: 3 steps of AVR, CPU controlled Input voltage range: 175~275Vac Input frequency range: 50Hz / 60Hz (Auto sensing) Output voltage range: 198~242Vac 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 RJ45/11 & USB Battery: 4 pcs*12V9Ah Charging period: 4~6 hours recover to 90% capacity PROTECTION: 1. Battery low voltage protection 2. Overload protection 3. Short circuit protection FUNCTION: 1. Auto re-starts when AC recovers 2. Silence setup 3. Automatic charging (offline charging) Unit dimension (mm): 340*110*265 Net weight (kg): 20kg