When the batteries run out forever in a post-apoc world, what'll be the best lantern to use to give just enough light to read by and to get around the room without bumping into the furniture?
Is a kerosene (aka paraffin) lamp our best bet? Are some models more efficient than others?
How long will the flame last with one filling?
And when kerosene/paraffin supplies run out what'll we do then?
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