If single output max is what your after you can just tell them and they can do any model like that without the QTC! The switch still pushes the qtc if it’s in there, just easier to smash it to high mode.
Kosen has a Malkoff body guard still available that used Li-ion batteries. Comes on high at 600 lumens and steps down after 8 seconds.
https://www.kosen.one/product/malkoff-bodyguard-reflector-hcri-flashlight-nichia-519a-cr123a-16340