Have you considered these ? The Ultimate "Budget" EDC light, for LESS than 2 bucks. **UPDATE with MOD INFO**
No modes, but very usefull and damn cheap.
Edit: Don’t know but the Xint X3 carrier offered by Gearbest migth fit on some 26650 lights as the x3 only accepts unprotected cells, anybody checked yet?
Would be a way better primary option than AAA.
If it fits Supfire L6 comes to mind, has decent quality but is a few $/€ more.