"Forward" task    
You have your solar panel(s) -> You want to estimate the PWM charge controller you need  
Enter Isc of the solar panel, A  
Select if the charge controller is Rated or De-rated
 
Estimated PWM charge controller maximum current, A  
     
Enter Imp of the solar panel, A  
Select if the charge controller is Rated or De-rated
 
Estimated PWM charge controller maximum current, A  
     
"Reverse" task    
You have your PWM charge controller -> You want to
 estimate the solar panel(s) you can connect to the controller
 
Enter PWM charge controller maximum current, A  
Select if the charge controller is Rated or De-rated
 
Estimated Isc of the solar panel, A  
     
Enter PWM charge controller maximum current, A  
Select if the charge controller is Rated or De-rated
 
Estimated Imp of the solar panel, A  
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