[Openurmind]

“Does that regulation reduce the voltage by wasting the voltage excess through a resistor?”

I think with the newer controllers they basically have a “Buck Convertor” incorporated to step down the voltage while stepping up the current. So there is not much actual loss of total input.

https://en.wikipedia.org/wiki/Buck_converter

[cymbeline]

” they basically have a “Buck Convertor””

Thanks for that and the link to Wikipedia. Huge article. Need to go back and actually learn how it works.