hi
i have a 100 watt 12 Volt panel made by Renogy it seems to be made really good
they have 12 volt panels and 24 volt panels .. i called them and asked them some questions one was where the panels are made now i can't remember if it was the 12 volt ones or the 24 volts ones but one or the other has USA cells but put together over seas
seems like it was the 24 volt panels that has the USA cells
they are a cheap price and made good