Salt's motto is “This is not just a product. It is a social movement. And they don't lie. Aisa Mijena, a member of the De La Salle University Engineering Faculty and a Greenpeace activist, works, together with the rest of the team Raphael Mijeño and Joefrey Friascon, to ensure that the most disadvantaged communities of the islands have affordable lighting. Normally the inhabitants of these unprotected areas use in their homes mainly candles, paraffin, or lamps that work with batteries, which often cause fires.
The salt lamp uses a solution of a glass of water mixed with two tablespoons of salt - it is even possible to use salt water from the sea - to provide 8 hours of light. The electrode can last up to a year, depending on the frequency and duration of its use, and the process of its manufacture has a very low footprint. The Philippines is the third country most prone to natural disasters and this equipment could be used, too, in these situations.
Salt lamps also have the ability to charge smartphones and other devices, although the main goal of the company is to get these lamps to the most remote islands, which is in greatest need.
More info: http://www.salt.ph/