The full name of MPPT controller is "Maximum Power Point Tracking" solar controller, which is an upgrade product of traditional solar charge and discharge controller.

The biggest feature of well pump is to make the motor and pump into one piece, it is immersed in groundwater of the well to pump and transport water, and widely used in farmland drainage and irrigation, industrial and mining enterprises, urban water supply and drainage, sewage treatment. The motor required submerges into the water, the structural for the motor are more special than those of ordinary motors, it have four types: dry type, semi-dry type, oil-filled type and wet type.

Solar water pump (also known as photovoltaic water pump) is an attractive water supply method in the sun-rich areas of the world, especially in the remote areas without electricity.

Photovoltaic controller is an automatic control device used in solar power generation system to control the multi-channel solar cell array to charge the battery and the battery to power the solar inverter load.

Brushless DC motor is a synchronous motor composed of the main body and drive, and is also a typical mechatronics product. The brushless DC motor has the advantages of traditional DC motor, and at the same time cancels the carbon brush and slip ring structure, which can operate at low speed and high power. It is small in size , light in weight, has good stability and high efficiency, widely used such as automotive, automation and aerospace.