Saltwater Powered LED Lantern

You might not always have batteries on hand during an emergency, but you probably won't have trouble coming up with salt and water. And that's all you need to power this Saltwater Powered LED Lantern. It can be used for up to 80 hours, as the ingredients work with oxygen and a magnesium power bar to create the positive and negative electrodes needed to generate electricity. Just pour salt and water into the top of the light and plan for the apocalypse, or maybe just the power going out during dinner.

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