Some fields Have a very magnifying glass (Lookup button) next to them. Click on this button to Visit the Lookup Solar wires: Two types of solar wires are required because the process connections operate on two forms of currents. The current created via the solar panel and visiting the inverter https://bluetechsolarcell.com/solar-rooftop-%e0%b8%9a%e0%b8%b8%e0%b8%a3%e0%b8%b5%e0%b8%a3%e0%b8%b1%e0%b8%a1%e0%b8%a2%e0%b9%8c/