Litre of light

Updated at 10:16 am on 30 September 2014

Illac Diaz is working on a project to bring free light to 15,000 homes in the Philippines. It uses no electricity, and all you need is water, some bleach and an old soda bottle!

Tags:   Phillipines light

From This Way Up

This story was broadcast on Saturday 8 October 2011

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