Any CR123 flashlights that can also take 18350 and/or 18500?

With CR123/16340 similar physical size compared to 18350, I am surprised that not that many that can also accept 18350.
So far I have found two: old Nitecore MT40 and old Sunwayman T40CS Plus.
Beside 2 x 18650, they can also take 4 x 16340.
Instead, I put in 4 x 18350 and they both work fine.

Interestingly, my old Olight M3X Triton which without its extension tube takes 3 x 16340, does not take 3 x 18350 but it does take 2 x 18500.

I am interested to buy flashlights that can take different batteries even if the manufacturers didn’t intend to do so.

Thank you guys!

If you are still looking the Astrolux s41 will take the 18350 or the 16340. Here is a link. it is a quad nichia light. https://www.amazon.com/Astrolux-Flashlight-Flashlights-Travelling-Batteries/dp/B01LX8MJU0/ref=sr_1_1?ie=UTF8&qid=1500605715&sr=8-1&keywords=astrolux+s41

the astrolux s41 can also take 1x 18650 with extension tube but perhaps that is of no interest to u?

I was just recently wondering what light I should get to use with my 18350 and CR123 cells that are gathering dust. I asked myself the same question as you in the thread title. I suppose manufacturers don’t make their lights this way because their CR123 cells would be rattling around if it was bored a bit wider. That and because most folks have no idea what an 18350 cell is.

For my wish list light, small size is important as is a reasonable amount of lumens. I kinda dislike these cells because they perform in such a mediocre way when you are talking run times so a pocket rocket isn’t the best idea for me.

I may just get a shorty tube for a Convoy or Astrolux S1 and go that route but something smaller and lighter would be preferable. The Astrolux E01 looked good, but without low voltage protection and the minimal capacity of these cells, I’m not going to take the risk.

it usually goes the other way
18350 lights can use 16340 or cr123
though they may rattle, depends on springs or not

wle

Do drivers do a good job separating a discharged 18350 (3.0V) from a new CR123 (3.0V) yes or no? It would be very dangerous to push CR123 batteries as hard as lithium ions. Can they be programmed to only pull small amounts of amps when voltage is below say 3.6V?

i don;t think the cr123s have any danger

one annoyance is, they can go down to zero, if you don’t mind the dimness

but if the driver thinks it is li-ion, it may cut the light off before the cr123 is dead

xtar used to have a partial solution for that
when you install a battery, the driver would assume it was new
it would read the voltage and if it was under 3.5 or something, assume it was cr123 and let it go to zero
otherwise it would assume li ion and cut off at 3v
it would get tricked if you installed a partially discharged li ion

wle

Mecarmy PT-16 does 16340 or 18350 (no cr123)
Jetbeam RRT-01 does CR123, 16340, 18350