iMeshbean 250W 300W 500W 600W 1000W 1500W 2000W MPPT Grid Tie Power Inverter for Solar Panel/Wind Turbine Generator System Pure Sine Wave Stackable with LCD Screen USA DC Input Voltage Range: 22V ~ 50V;AC Output Voltage Range: 90V ~ 130V; Normal AC Output Power:450W; Maximum AC Output Power:500W AC Output Frequency Range: 46Hz ~ 65Hz. Peak Inverter Efficiency: 92%; Output Current Waveform:Pure Sine-wave; Standby Power consumption:&lt;0.5W Features:MPPT Function/Over Current Protection/Over Temperature Protection/Reverse Polarity Protection/Island Protection/Stackable Package Includes: Power inverter and Power cord