Litre of Light helps poor communities around the world assemble their own lights using old recycled plastic bottles.
They start with day lights which are made by filling the bottles with water and bleach. They are then fixed to roofs refracting sunlight during the daytime.
The second step is to build solar night lights by adding a micro solar panel in the plastic bottle.
All the parts used are locally available to the community.
The project started in the Philippines in 2012 and has now spread to over 15 countries.
Litre of Light has lit over 850,000 homes so far. They aim to reach 1 million in 2018.
Produced by Claudia Romeo
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