Off-grid system for running homes and caravans - separate from the electricity grid, sufficient to run: 2 air conditioners 1500 watts (18,000 BTU) for 8 hours during the day and 6 hours at night Refrigerator 24 hours 20 light bulbs 15 watts for 12 hours at night Television screen 100 watts / 4 hours The system contains: 18 panels 640 watts 3 Qssun 10 kWh lithium batteries Hoymiles 8 kW inverter 60 meters of 6 mm red + black cable 4 MC4-1 connectors 8 connectors 35 mm - with cable end