Looking for a single cell cr123a battery Vampire?

Looking for a single cell cr123a battery Vampire? Have large stash of cr123a cells from two cell lights.

Thanks

I use a Fenix PD22UE but there are likely cheaper options out there.

headlamps?

a great way to use em up would be in a 2s that can go to 8.4+

my P36 can take 4 rcr123 16430 18350

but thats not a single (depends on how vampirey) for Halloween

Thorfire KL02 ?
if those cells are button tops they may not fit. But it is a simple light, no driver. Uses a Bead type LED. I had to change mine over to a 3W WW tint and added a magnet to the tail end. Sure does light up an area though.

No, that’s not what i’m looking for.