Yueqing Sandi Electric Co.,Ltd is one of the leading China solar power system manufacturers,Website:http://www.cnsandi.com, welcome to wholesale cheap solar power system from our professional factory.Solar Power SystemIntroductionPV Off-grid Solar power generation system including solar panel array, solar charge controller, storage battery, Off-grid inverter, etc. In the sunshine, the solar panel convert the solar energy to DC power and charge the battery group by the charge controller. Then the off grid inverter convert the DC power into AC power for power supply the AC load.Application1.3KW-250KW off-grid system2.Can design solar system according to your requirement and your local solar condition,used for house,office,factory,farm,water pump,lighting.etc.  3.The system is designed automatically switch to grid power when battery power off ,then grid power will charge battery.When grid power not available,can switch to run on diesel generator so as to continue water pump irrigating or other application.4.Our company have produced solar inverter, solar controller and PV combiner box for many years, With reliable quality and very competitive prices, we have exported products to USA, South America, Europe, India and Southeast Asia,and gotten good feedback from our overseas customers.Our products from raw materials to finished products every process, every aspect of all strictly by professionals in order to ensure product quality. Also we can provide the certificate to ensure the quality of our productions, mainly CE, IEC, TUV ISO.