--- http://pcm.ru/catalog/item/3068/ Model: PowerCom Smart King Pro SPT-3000 Form: Tower Capacity(VA): 3000 VA Capacity(Watts): 2400 W Key Advantage: Line-Interactive UPS Design Pure Sinewave Output for Better Power Performance Build-in AVR Aimed for Fluctuating Voltage Problem Battery Easy-Swap Replacement Design Surge, Short Circuit, Overload Protections INPUT Voltage 220 / 230 / 240 Vac Voltage Range 165 - 300 Vac Frequency Range 50 / 60 Hz (Auto Sensing) OUTPUT Waveform Pure Sine Wave Voltage 220 / 230 / 240 Vac Frequency 50 / 60 Hz ± 0.5 Hz Transfer Time 2 - 4 ms(Typical) Sockets: 2 x Schuko PROTECTION Full Protection Overload, Surge, Short Circuit Tele Communication RJ11 / RJ45 BATTERY Sealed, Maintenance Free Type&Quantity: 4*12V 7Ah Typical Recharge Time: 3 Hr to 90% Indicator: LCD Panel Communication Port: RS232, USB(B-type) PHYSICAL Dimensions(WxDxH)(mm) 170 x 450 x 226 Weights(Kgs) 25.4