The solar pumping system is mainly composed of photovoltaic modules, solar pump controller/inverter and water pump, the solar panel converts the sunlight into electrical energy, passes it to the solar pump controller, the solar controller stabilizes the voltage and output power to drive the pump motor, even on cloudy days, it can pump 10% of the water flow every day. The sensor is also connected to the controller to protect the pump from running dry and automatically stop the pump when the tank is full.

In most cases, MPPT technology will "boost" the charging current of the solar power system. For example, a system might have 8 amps flowing from the solar array to the controller and 10 amps flowing from the controller to the battery The controller does not generate current, and the energy input to the controller is equal to its output energy. Since power is the product of voltage and current (volts x amps), the following holds true: (1) Controller input energy = controller output energy (2) Input voltage x input current=output voltage x output current*Assumes 100% efficiency, ignoring power losses in wires and conversion. If the maximum power point voltage (Vmp) of the solar array is greater than the battery voltage, the battery charging current must be proportionally greater than the solar array outpuf current so that the input and output power can be balanced. The greater the differe between the Vmp voltage and the battery voltage, the greater the current boost. Current enhancement is extremely important in the system because the maximum power point voltage (Vmp) voltage of the solar panels in a solar power system is usually higher than the battery voltage.

Main features:• High efficiency, small size, light weight, more functions:MPPT function:• Automatically working function;.Solar powered water pumps work with both solarpower and battery, can connect with solar panels and dc battery at same time, will use solar power in advance which is more higher efficient than MPPT function;