Specification Material: Aluminum Alloy Color: Silver Model: XJ-WVC-700W Plug: US Standard Voltage: 110V Maximum Input Power: 2 × 350W Recommended Solar Panel: Power 2 × 350W, Open Circuit Voltage 30-50V Maximum Input DC Voltage: 54V Peak Power Tracking Voltage: 22-45V Operating Voltage Range: 17-50V Minimum/Maximum Starting Voltage: 22-50V Maximum DC Short Circuit Current: 40A Maximum Input Working Current: 30A Output Voltage: 120V Output Peak Power: 700W Rated Output Power: 650Watt Rated Output Current: 6.36A Rated Voltage Range: 80-160VAC Rated Frequency Range: 57-62.5Hz Power factor: >99% Number of Connections Per Series Circuit: 6 (Single-phase) Output Efficiency: 120V Static MPPT Efficiency: 99.5% Maximum Output Efficiency: 91.2% Power Loss at Night.