ordered some low-drain 18650's what should I do with them

[familiarstranger]

looking for suggestions as these are basically useless in my lavatube. I've heard some flashlights use 18650 are those low drain or high?

any fun ideas or projects?

 

[asdaq]

Flashlights are pretty much the same game. You could use them in series in a nice step down regulated mod and be proud of how long they last without suffering in performance.