Simple and reliable motor structure. Compact structure, easy to carry and install. Double porcelain sealed stator and rotor. The insulation waterproof treatment is carried out by using the patented technologyInsulation strength of the winding is more than 500 megohm. Controller function is perfectly designed with protection, MPPT, over-current, undervoltage, preventing anhydrous operation and mobile APP control. Unique Advantages Green environmental protection. Solar direct power supply. Low voltage DC Energy saving and safety