Fruit Batteries to Power up LED Light

Recently, Britain's leading photographer, Caleb Charland, launched his new work "Back to Light", using fruits and vegetables as batteries to power up LED light. The photographs are amazing, demonstrating basic scientific principles with most common things around us.

"Back to Light" is inspired by a classic school test, potato battery. "By inserting a galvanized nail into one side of a potato and a copper wire in the other side a small electrical current is generated. The utter simplicity of this electrical phenomenon is endlessly fascinating for me." Charland said.  The experimental subjects are not only potatoes, but also other kinds of fruits or vegetables. He once made a temporary battery with a lime, or supplied power via a pile of apples, or even powered up LED light by just an orange.
Fruit Batteries to Power up LED Light
Orange to Power up LED Light
lime to power up LED light
Lime Battery
lime battery
Lime Battery for Lighting
apple battery to power up LED light
Apple Battery to Power up LED Light

Fruit battery in the picture is actually a circuit for LED lights. Power for a 3.5W LED light comes from 10 apples, or sometimes 20. Each fruit has its own power. Cantaloupe has abundant power while the grapes do not. Charland once connected 200 grapes but only got a voltage of about 1.5 volts.

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