Capacity: 1500VA / 900W Topology: Line-Interactive Input Voltage Range: 89-151V (for 120V models) or 160-290V (for 230V models) Input Frequency Range: 50/60 Hz (auto-sensing) Output Voltage: 120V or 230V (depending on the model) Output Frequency: 50/60 Hz (synchronized to mains when on utility power) Transfer Time: 2-6 ms (typical)