I do not have one of the Fenix's, although they do look nice, I have a Surefire E2D LED. I am a military man and also deal in weapons, so I have many various tactical lights, but I can only speak of the Surefire which I have used for many years. The torture we put these through and their survivability is phenominal. I would like to test out one of these Fenix's to really put them through the test. They look nice, and are brighter than my 200 lumen Surefire, but I know what my surefire will take in abuse and still not let me down. That's just my 2 cents from an Infantry guy. Cheers!