I'd rather use a single 14450, no specifics yet -- except I like pocket size lights, so smallish if I can do it somehow.
The size range I'm hoping for is something like these, what I use now, none of which are quite what I want yet
I'm still carrying an Arc AAA MillerModded 2-level in the wallet, and a modded amber LED in an Arc LS case as my pocket light for evenings, most of the time; a little Trustfire Z1 strobe for traffic crosswalks, and Sipik SK68 when I don't know what I'm going to need to look at but know it'll be only on briefly (as they get too darn hot used as a worklight).
So I'm poking around.
Lots of interesting stuff around at 17mm, I'll be trying something in that larger size to as it's so much easier to find, like
Loading... (doesn’t say what voltage limits it handles; does say it’s current regulated)