i still use the 2 AA battery small L-torch, cuz so many
commander items, cling here and there like christmas tree.
so idea is to make your SBO as light as possible, I think C-batt
larger L-torch and the smaller once all about the same, and also in
order to be tactical, normally you also black tape the round cover
until you have a transparent hole no bigger than a 10cent coin.

so dun need to buy big as anyway after tapping end up the
same.
and then when we turn ops, like 8 yrs back, no one requires use to
use proper big big size torches also, cuz we are thinking soldiers.
