A cup of water and two spoons of salt let the LED light run for 8 hours

On top of the Philippines archipelago, over more than 7000 islands are still unable to use electricity. So after the sun goes down, the only source of their light is from the kerosene lamp. Although it is very cheap, the strong smell of kerosene is not only bad, but also harmful to human health. To solve the problem, the engineer and green peace volunteer Aisa Mijeno, after thinking, proposed the idea of a brine LED lamp, requiring only a cup of water and two teaspoons of salt to allow the device to run for eight hours.

The working principle of the brine LED lamp is the same as that of the ordinary battery, only the salt water is replaced by the pure electrolyte solution, and the two ends also have the design of positive and negative poles. Considering the rich sea water resources around the Philippines islands, this product can be said to be the most suitable for environmentally friendly renewable energy.

Like other ordinary batteries, it's impossible to use it all the time. This product can only be used for eight hours every time it is filled with sea water. And after a continuous use of six months or so, the electrodes at both ends should be replaced.

The designer says the product has a great power supply that can not only provide lighting, but can even recharge the smart phone through its USB port. At the moment, they plan to make 600 of them to be offered to the aborigines on the island of Philippines. After the later completion, they may be formally put into market operation in early 2016.

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