
I've seen them used on youtube for oil lamps. I didn't expect much. If you just fill a jar with oil, you can easily swim and light one of these puppies. They won't sink, the oil won't ignite, and they'll burn for days while the oil is in a jar or so. I've tried do-it-yourself oil lamp kits with string because they burn out in minutes. The record for these guys is 2 days straight.

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