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MrMom said:As a very regular and HEAVY USER of lights, IMHO single 123a lights suck! On the other hand if I were an a occasional user, a single 123 for EDC would fit the bill. There will be several that do not agree with me /ubbthreads/images/graemlins/mad.gif but for the most part they will not be from the type that NEED to use a light often daily as a tool.
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Funny how different perspectives can be. I go for weeks without needing a flashlight at all, and usually, when I do, it's more convenience than need. I carry one for emergencies- if I do need it, it will almost by definition be an emergency, certainly out of the ordinary.
For my use, the availability of the 1x123 size (Q-III, in my case) is the difference between having one on my person when I need it, or having one only in my pouch/pack, wherever that may be..
I guess the one I have the most doubts about now is the Streamlight TT 2L. There's nothing WRONG with it, it's just that now that I have a 2-stage L4, it's pretty much completely redundant. On low it seems too dim, on high it's... well, incandescent, which I had already lost interest in, it's just barely too big to pocket routinely, and I got it just about a week before the 3W 2L came out, which I probably would have bought instead.
I have the X5HA, but I'll probably keep it in the office for just that sort of IT use- peering behind and into computer cases on "used" 123s.