The off-grid solar power system consists of solar module, charging controller and rechargeable battery inverter (DC/AC). The power can be collocated according to your requirement. It is most used in off electric area which away the public power netwok and some special places, such as outlying country, a pasturing area, island, plateau and the fishman in desert area. It provides the basic life electric for these places, such as lighting, watching TV, broadcasting, etc. And also provides power for communication relay station, the navigation mark of coast and inland, weather power station, frontier defence sentry, hydrographic monitoring, etc.