The Windy Nation 100 Watt Solar Panel allows you to start producing free, clean power from the sun! Perfect for RV’s, boats, cabins and back-up power! Multiple WindyNation 100 Watt Solar Panels can be wired in parallel to increase charging current (amps) to a 12 volt battery. Or multiple WindyNation 100 Watt Solar Panels can be wired in series to increase voltage for 24 volt or 48 volt battery charging. Panel arrives ready for connection. SEE PICTURES IN PHOTO GALLERY ABOVE FOR ALL TECHNICAL INFORMATION.