Wait? Why? If you have a specific question, by all means go ahead and ask it.
Fans work the same way as LEDs, except they need different voltages and are less touchy about current. Again, there's a ton of resources on that topic, just look at how other people have done it if you can't find anything that explicitly wants to be a tutorial. You can also use Google to search the 405th by adding "site:405th.com" (without the quotes) as a keyword.