I have been in situations where a run of plastic plumbing (PEX Tubing) has been very close (1-2") to where I'd like to install a recessed light. I'm not sure how close they can be, or what would happen if they eventually came in contact.

A PEX information site says that it is good for up tp 200 deg. for heating applications, 180 deg. for plumbing, but maximum recommended of 140 deg. I'm not sure how hot the outside surface of a Hi-Hat gets.

Any thougths, or experiences would be appreciated.