I Lit Up an LED Using Only Lemons “No Batteries”

I’ve done this experiment a few times and it always surprises people who haven’t seen it before. It’s pretty simple to put together and the materials are stuff you probably already have at home or can grab cheap at a hardware store. The idea is to use lemons, a couple of different metals, and an LED, and watch the light turn on using nothing but fruit juice.

To start you’ll need about 4 to 6 lemons, ideally juicy ones, the more juice the better the conduction works. You’ll also need copper strips or wire, a copper coin works fine too, and galvanized nails or screws that have zinc in them. Alligator clip wires make the wiring easier, but if you don’t have any, plain wire with stripped ends does the job. And of course an LED, red ones tend to light up with less energy than blue or white.

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