My Shelter Foundation: Isang Litrong Liwanag (A Liter of Light)

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A plastic bottle, water and bleach are bringing light into hundreds of poor Filipino homes in Manila via the project A Liter of Light. Illac Diaz and his organization, the MyShelter Foundation, are working to bring the simple technology, originally developed by students at the Massachussetts Institute of Technology, into shanties across the city. When placed in the roof, the "light bulb" will refract sunlight to produce 60 watts of clear light, illuminating the houses below.

The entire process takes an hour to install but the bulbs can last for up to five years. The Liter of Light initiative wants to be in place in one million homes in the Philippines by 2012.

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