Automatic solar cooling with the mother of all fans

[sparky1]

all computers have several 12 Volt Fans, some have 5 volt & 12 volt they are the 3 wire ones.
I have salvaged some 20 + computer fans.
Have a great weekend all.

 

[blars]

The third wire on a compter fan is a sensor to detect how fast it is running. Just leave it disconnected.