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PWM controllers are less expensive and simpler to operate. They work by regulating the amount of power that goes from the solar panels to the battery. 

The controller turns the circuit on and off at a rapid rate, effectively controlling the flow of power to the battery. 

However, PWM controllers are less efficient than MPPT controllers.

PWM solar charge controller

MPPT controllers are more expensive but are more efficient and can handle a wider range of solar panel voltages. 

They work by finding the maximum power point of the solar panel and adjusting the output voltage and current accordingly. 

This means that MPPT controllers can extract more power from the solar panels than PWM controllers, especially in low light conditions.

MPPT solar charge controller

In summary, PWM controllers are less expensive and simpler to operate, but less efficient than MPPT controllers. 

MPPT controllers are more expensive, but more efficient and can handle a wider range of solar panel voltages. 

When choosing a solar charge controller, consider the size and voltage of your solar panels, as well as your power usage requirements, 

to determine which type of controller is right for your system.

Welcome to send inquiry to us, we will supply the free technology info and also supply the suitable solar charge controller for you.

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