Cool fact

[ronster667]

I noticed a few weeks ago i was sitting at my desk just kinda being bored and i picked up a Led cpu fan, I took it and I blew into it as hard as I could, and I noticed it lite-up (I think thats how you spell it) I thought that was pretty cool, I guess the leds are powered by the fan moving not by the power supply.

 

[Machin3]

Yeah, I think they are motor-powered so when you spin it, it generates power and causes the to light. Kind of like a wind-mill.

 

[bomberboysk]

Yeah, I think they are motor-powered so when you spin it, it generates power and causes the to light. Kind of like a wind-mill.

It Generates power, so essentially is more like a GENERATor, thats the essence of many dc motors, if you wire one motor's(or fan) wire to another, and spin one fan with ur finger,the other fan will spin as its generating power.