The lamp is simply a clear plastic bottle filled with purified water and bleach, which is inserted into open holes in the roof to take advantage of outside light during the day.
The effect is striking. The sun's rays travel through the container and the mixture produces a brilliant 360-degree refraction that illuminates any room with the same intensity of an electric bulb of 55 watts, at a cost of 2 to $ 5.
The idea forms part of the "One liter of light" of the organization MyShelter Foundation Inc., which has the ambitious goal of bringing light to a million Filipino households in 2012, in a country where the high cost of electricity is one of major concern.
Using 100 percent renewable energy and materials readily available, the INITIATIVE improves quality of life and relieves the pocket of the Filipinos, whose income generally do not exceed $ 18 per month.
The procedure is simple and requires little training. Fill the 1.5-liter clear bottle with purified water and add three tablespoons of bleach. Then seal the lid tightly. The bleach prevents mold growth in the solution, which can last 5 years, while providing distilled or purified water clarity.
The solar light bulb is an innovation of the students of Massachusetts Institute of Technology (MIT), U.S., and is based on the principles of appropriate technologies - "a concept that provides simple and easily replicable technology to meet the basic needs of developing communities. "So far it has brought benefits to neighborhoods of Brazil, Mexico and the Philippines.
More details www.aliteroflight.org
