This, but not permanently. One of the most aggravating things is being stuck in a dark building fully rested and having your only option be having nothing to do but waste a few hours and calories doing nothing of use until daylight. Happens to me all the time. I would rather spend that time fixing my gear or reading. Having a guarranted source of light w/o fire would, on non auroras, be useful. Would save on match use too and be a lighter weight option compared to a lantern and fuel. Plus those
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