first off dont buy that one... IMO
I would go on ebay and search for JEBO 220w http://search.ebay.com/JEBO-220w_W0QQfkrZ1QQfromZR8
(theres the link... I saved you some trouble) and buy one of those. less than 100$ for the exact same thing. I bought that, and am thinking about buying another. I currently retrofitted the PC
lights into my hood. the JEBO unit makes it really easy to do such a switch.
Just a thought, trying to keep your costs down.