What is the power of the solar controller?
For example: 12V10A controller, then the solar panel over the current is not more than 10A, the solar panel power is not more than 120W, useful DC load, then the DC load is not more than 80W
The solar controller is represented by the maximum available current
If you are 12V system, select the 10A controller, then the controller with the power of 12V × 10A = 120W, up to the battery with no more than 150W.
Generally in accordance with the current to count. Depending on your system voltage, such as 12V or 24V
