I carry a Photon II on my keyring, and sometimes tucked away in my wallet. I have considered the Arc AAA on several occasions but for me keeping size and weight at an absolute minimum is almost always a priority. That's why I go with the Photon II. I have gone camping several times recently with no flashlight other than my Photon II and it has served me quite well. I may still eventually try out the Arc AAA but due to it's size, I doubt it would ever truely be an EDC item.