By God, I completely forgot the power save mode...Very good catch there! Now that would make things interesting!

Factors I want to work in, now.

The power save mode, thanks again for reminding me
Cold environment to simulate less than ideal conditions, thinking of keeping it in the fridge or even a snow-drift if I get the lights going in the winter. May run a room temperature test on a whim later on.
All using 2032 cell, various colors. If things die quickly on some colors, may substitute two 2016s in future tests.
Simply lighting up is not enough, must provide functional illumination.
Straight run through, if it goes out it's out of the running.
Further testing of colors to determine if the longer running ones are even usable in the actual field.
Constant on, no strobe modes.