They are strip LED lights made to go under cars. I ordered two sets of them from JC Whitney (around $75 per kit). Each kit had 4 strips, two 3' and two 4'. I didn't use the switches or mounting hardware that came with the kits. I just glued them in placed. Not sure how they will hold up, but I think they should be pretty durable sense they were made to go under a car...
Here's the link:
http://www.jcwhitney.com/flexible-le.../p2022025.jcwx