What's the difference?

I was looking to tint my tail lights and side reflectors. What is the difference between these three products. Why is the one from fordpower 65 dollars and the one on ebay 20 dollars. Has anyone used either one and, more importantly, do you have any pictures? Thanks in advance.

http://www.fordpower.net/store/customer/product.php?productid=17&cat=&page=

http://cgi.ebay.com/ebaymotors/99-0...012QQitemZ220107006034QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/ws/e...RK:MEWA:IT&viewitem=&item=180110317860&rd=1,1