I know it may be a little excessive, but you could the recessed cans that are rated for an MRI room. They are made of plastic. You know so the MRI machine doesn't suck them out of the ceiling. http://www.electriciantalk.com/images/smilies/laughing.gifThe Lights in an entry way at a time share right across from the beach are rusting from salt air. Where can I find recessed lights that won't rust from salt air?