The Renogy 600W Solar Kit - general off grid series offers you varies of options to help you get the most suitable mobile electricity solution for your 3.5-4kWh daily power need. (Based on 5 hours of direct sunlight conditions). These kits can build a reliable and environmentally friendly power supply, perfect for a yard, barn, RV, boat, or camper. It can also be installed in a ground mount system next to off-grid campsites, as a power supply for outdoor appliances and emergencies, or as a stand-alone power system for water pumps, greenhouses, or other remote structures and machinery.