LED Lamp Powered by Living Bacteria

Tuesday, November 8, 2016 - 10:19

A Dutch designer has unveiled a LED pendant lamp that is powered by living, electrochemically-active bacteria.

Teresa van Dongen has created an LED lamp called the “Spark of Light,” which is powered by living, electrochemically-active bacteria, Inhabitat reports.

The lamp is completely self-contained, and can operate without a plug or batteries. However, the organisms within do need to be fed to continue producing light. It made of four separate compartments containing the bacteria.

As long as the bacteria are healthy, these microorganisms constantly give off small electrical currents. An electrode within each section captures these currents and powers the LEDs in the center of the light.

Dongen explained that as long as a teaspoon of acetate is added to the fluid within the lamp every two weeks, the light will continue to glow without any additional electricity, 24 hours a day. Every few months, the vessels within the lamp must be cleaned and refilled with tap water, salt, and vitamins.

This latest zero-electricity lighting product will soon be available as a consumer product and not just a prototype. The pendant was showcased last month during 2016 Dutch Design Week.

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