<ul><li style="margin-left:0px;"><strong>Support 4 Charging Modes & 3 Output Modes: </strong>Solar-first mode, Utility-first mode, Charging by Utility and solar, Only solar. Three output modes: Solar-first; Utility-first(Default); SBU Priority. Integrated Smart battery charger: compatible with the grid, mains and diesel generator.</li><li><strong>Mobile Phone Remote Monitoring: </strong> The GPRS WiFi 1 module is a plug-and-play monitoring device. Using this device, users can monitor the status of their off-grid solar system via mobile phones or websites anytime and anywhere. </li><li><strong>Solar Inverter Built in 50A Controller Offers Multiple Protection:</strong> AC input over voltage protection/AC input low voltage protection/Over temperature protection/Over load protection/ Short circuit protection/Reverse protection/Deep discharge protection. <br> </li></ul>