You are probably used to kerosene or battery operated lanterns/lamps. What about a lantern that runs solely on salt and water?
The Salt powered lantern is a lamp developed by Sustainable Alternative Lighting (SALt) that can illuminate rooms and can charge smartphones using only salt and water as its source of energy.
The idea for SALt lamps came from co-founder and CEO Aisa Mijeno, a member of Greenpeace Philippines and part of the Engineering faculty at De La Salle University — Lipa. While visiting a Filipino mountain tribe, she saw that they depended on kerosene and moonlight to do their evening chores. She and Raphael Mijeno (co-founder and CFO) decided to create an alternative source of lighting that would be more efficient, safe, and sustainable.
You can view the short video on the Salt Lamp here
The Salt lamps are powered by either seawater or a homemade saline solution (a glass of water and 2 tablespoons of salt)
The design uses Galvanic cells similar to batteries, yet relies on a non-toxic saline solution instead of potentially harmful electrolytes. Used eight hours a day, the lamps have an anode lifespan of six months.
source: DigitalTrends
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