Light in homes from plastic bottles filled with water

MIT developed the idea and it’s now being implemented in poor homes in the Phillipines. Fill a plastic bottle with water and stick it in the roof. It provides a surprising amount of light.


    • Nevermind, I actually read the article and they’re solar bulbs that also use the sun to charge themselves. I suppose it’s ok depending on how much of a charge they can hold.

Comments are closed.