It’s a lamp that runs off mud... or more accurately, the microbes therein, that create a PH imbalance that causes zinc/copper anode/cathode to light up an LED.
They also make mud clocks.
Which is pretty cool.
It’s a lamp that runs off mud... or more accurately, the microbes therein, that create a PH imbalance that causes zinc/copper anode/cathode to light up an LED.
They also make mud clocks.
Which is pretty cool.