I'm interested in purchasing a Photon 1 or 3. But I'm concerned about the unprotected LED breaking or being scratched while it is in my pocket with keys or change. Has anybody had this problem? Should I get the covert model instead? I'd like to use the Photon as a general purpose keychain light. How much usefullness is lost due to the LED housing on the covert model? Can the housing be removed from the covert model? Thanks!