you just put leds under it and wire it up
http://img.photobucket.com/albums/v216/danman84087/ledsbehind.jpg
http://img.photobucket.com/albums/v216/danman84087/ledsanglebehind.jpg
and here is a better angle of my fan
http://img.photobucket.com/albums/v216/danman84087/fanangle.jpg
its not really that hard to do just time consuming
http://www.thexboxspot.com is the place where you can buy underglows
http://img.photobucket.com/albums/v216/danman84087/ledsbehind.jpg
http://img.photobucket.com/albums/v216/danman84087/ledsanglebehind.jpg
and here is a better angle of my fan
http://img.photobucket.com/albums/v216/danman84087/fanangle.jpg
its not really that hard to do just time consuming
http://www.thexboxspot.com is the place where you can buy underglows