Cooling fans

I got this set on order to try before making the plunge of a chiller. According to ratings and the system itself it claims it can bring the temp. down by 4 degrees. I am not sure if it will work but for $38 bucks its worth a try. It was free for me because I recieved a couple amazon gift cards for christmas. :;toast

http://www.amazon.com/gp/product/B00595MKHC/ref=oh_details_o01_s00_i00