Features: 1.Automatic line-to-battery switchover 2.Selectable Input voltage ranges 3.High efficient DC-to-AC conversion, minimizing energy loss 4.Rack Tower design for flexible placement 5.Built-in 8-Amp charger 6.Intelligent 2-stage charger control for efficient charging and preventing overcharge 7.Provides overload protection 8.Auto restart while AC recovery 9.Multi-function LED indications and buzzer alarms.