Solar Power System, widely used, Off-grid powe system, Home use solar power system, Home use off-grid powe system. One Solar Power System consists of Solar Panels, Solar Controller and Battery ( group ). If the output power is 220V AC or 110V, Inverter should be added into the design. Model: KH-TYNXT-0011) Solar Panel:Solar panel, the most indispensable and valuable part of the solar power system ...