Hard to standardize when no one wants to have four of the same headlamps or flashlights. But I am trying to work towards mostly AA's as well.

I wish two other areas would be standardized and we have a better chance of it happening here than in batteries- memory cards and light output. I have three memory cards, all do the same thing, none of them compatible with other devices. As to watts, lumens, etc. Just pick one and stick with it is my advice to those companies. Stop toying with the consumer.

Back to the main question. Depending on where ur at, use a small chem light to mark ur tree or trench. Won't help missing a branch or root but the light you use wont need to as bright either.

i always recommend items that have multiple uses. In this case alight with multiple brightness levels.