PET bottles as light bulbs

In the Philippines, used PET bottles are being refilled with water and are inserted into corrugated roofing to diffuse daylight in thousands of the poorest people’s windowless homes.

Watch the BBC video by clicking here.

Properly installed, a simple PET 1-​litre bottle can produce 50–60 watts of light without electricity. It’s known as the ‘Litre of Light’ project.

Do pass on this inspired idea.

Richard Hall is chairman of Zenith International. You can also read his blog at BevBlog.

About the author

Richard Hall is chairman of Zenith International.

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