DIY Daytime FARS?

Saw this fan & solar panel combo on sale today.

That wernt too bad, the problem i have found with a daytime fan is, there s a rise in about 0.5C when the
fan kicks in, i leave my fans on 24hrs now :slight_smile:

Yeah, it is hard to make a daytime FARS that also works well as a non-FARS when the fan isn’t running.