"The two came up with a lamp that works for up to eight hours at a time on one glass of water and two teaspoons of salt. Charging phones will likely require more water and salt. The metal electrodes have to be replaced twice a year.
The Mijenos have started their own company, called Sustainable Alternative Lightning, and have been finding support from start-up incubators from East Asia and organizations like USAID. A prototype for the lamp should be out by the end of the year."
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