... inverter, it reduces its costs3.Output voltage AC:110v, 220v, 230v, 240v,360v (optional) 4.With charger built-in. The charger ... you cancel the load, then it will return to work automaticallyTechnical specification: Modle300W500W1000W2000Wsolar controller controlling voltage14.5V29V58V58VController ... frequency50hz±1%50hz±1%50hz±1%50hz±1%DC voltage12V24V48v48VO/P waveformpure sine wavepure sine wavepure ...