Fan Design

[WhiteShark]

I was planning on using this type of fan to assist in cooling my 8 bulb lamp system:

 

http://www.officedepot.com/a/products/3703...DBB-system-fan/

 

The only problem is I'm finding that all these small fans have the 3 and 4 pin power cables. Is there a converter I could buy (or a DYI I could do) to convert this to a AC power outlet?

[neanderthalman]

Pick up a 12V AC adapter (wall wart), or find one from some old electronics. Surplus stores are your friend.

 

Cut off the plug and connect it to the wires of the 12V fan. If the fan doesn't turn, swap the wires.

 

I recommend soldering the connections and using heat shrink tubing for insulation, but there are any number of appropriate methods for making the connection, like crimp connectors.

 

It's 12V on a class II transformer less than 100VA. Electrical codes don't apply, and you're not going to hurt yourself or start a fire. Even twisting the copper together and wrapping with electrical tape would work and be safe, but I don't recommend half-assing it like that for reliability and longevity.

[WhiteShark]

I had thought about doing that, didn't know it was that easy though...