I am wanting to power a Fantastic vent fan through my solar controller (load side) (as the day heats up) but also want to be able to run the fan at night when I'm in it.
Question - the only way I can think of is to run 1 power wire (with a diode) from the solar controller to the fan AND 1 power wire (with a diode) from the PD4045 to the fan. It has been a LONG time since I've used diodes......does this sound reasonable??