The Hollow (Thermoelectric) Flashlight

LED Flashlights – General Info Other Battery Type Flashlights
21

If they might need to made it in a headlamp version, I know a few hot heads that would power it like a lighthouse :slight_smile:

22

Such as mine. My head literally BAKES.

23

Sure your not literally baked?

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Made the top 15 at the Google Science Fair