Its a off grid inverter that also can charge the batteries it has a built in mppt controller its a 2019 model name is scubart its exactly the same just like acer or 5 star only a different colour
The inverters are in parralel each has 9 solar panels in series of 3.Yes the solar panels were on the roof for a year until we upgraded to building racks for them
The panels information is mpv:340W voc:45.93v vpm:40.1v isc:8.86A