Here in the first world, it would work really great as a self-turning-off nightlight in my kids' room. Right now they have a battery-powered LED light with a timer, but they keep turning the timer to the "stay on" position and the thing stays on all night, wearing the batteries down & degrading their sleep.
Ken Williams commented on a link
It's not food-powered. The food was created by people farming & preparing that food, and the food was ultimately formed by plants harnessing solar energy for photosynthesis. The solar energy came from the sun. So this is a nuclear-powered lamp. Fusion, no less!
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