What does this mean? A single 18650 with 10 Wh can power 0.002 W continuously over 6 months. More than enough power to see light. But what would the point be? It is useless at that brightness.
It easily lights up the corner of my room on the beside table where I keep it in case I lose power. You can read by it with good eyes in a dark enough room.
Absolutely not. I’m a sucker for ultra low brightness modes, as in fractions of a lumen. It’s great for dark adapted eyes. It’s more than enough to see and move around, doesn’t ruin your dark vision, and won’t wake someone up accidentally. Runtime is practically unlimited. Why waste battery if you don’t have to?
Yes, I should have mentioned that. Nothing measurable yet but these are also decent quality matched 30Q cells that shipped with the light and this is only the second six month period into the experiment.
