Profile: Yunnan Yaochuang Energy Development Co., Ltd. is engaged in producing solar modules and PV applications. Our PV applications include solar modules, off-grid system, and correlative equipment. We serve energy power, lighting, traffic, agriculture, weather forecast, and communication sectors. Our YCSB solar water pump controller adopts maximum power point tracking and mature motor driving technology to maximize the output power of PV array. It supports DC and AC input, if sunshine is insufficient, the controller will switch to single or three phase AC input, such as genset or battery. And it provides fault detection, build-in VFD, and speed-controlling function, out of the box, convenient installation.