A Bright Idea – Liter of Light

A Bright Idea - Liter of Light | Hanna's Places

The other day I came across this great and still so easy idea, that has completely blown away my mind: Liter of Light. Have you ever heard of it? It’s a global project started by the Shelter Foundation in the Phillippines that wants to help underprivileged households to a sustainable source of light.

You only have to fill a 1,5 L bottle with purified water and bleach and install it onto the roof of a house (or rather – a corrugated-iron hut). When the sunlight hits the bottle during the daytime, the water reflects it and has the same intensity as a 55 Watt light bulb. These bottles only cost 65 cents and can last up to ten years. This way the poorest of the poor can save money on electricity (if they ever had electricity) and actually have light inside their huts. They can now work inside, the children can do their homework, everything with one small bottle.

I don’t know about you, but it’s ideas like this that impress me the most – it’s so easy, yet so effective and can help so many people.

Already thousands of bottles have been installed around the world. The goal is to install one million until 2015. Let’s start spreading the word so this can actually happen!

If you want to learn some more about A Liter of Light, volunteer or learn how to build your own bottle, you can go here.

Picture and video are not mine, they are via A Liter of Light.


  • Victoria | Oh So Pretty
    November 18, 2013


    Oh, I’ve never heard of this, but it’s wonderful! Thank you for sharing with us, Hanna!

    • hanna
      November 18, 2013


      As soon as I heard this, I thought I just had to share. It’s ideas like this that make the world a better place :)

  • Nathaniel
    November 19, 2013


    Such a good invention. + the guy who came up with it (in Brazil) never patented it, so he’s not made a penny out of it. The BBC did a great interview with him.

    • hanna
      November 19, 2013


      That’s interesting, I have to have a look and find that interview. Do you know if he purposely didn’t patent the idea? I just heard that it was an open source movement…

  • Helena
    November 19, 2013


    WOW! What a great idea!! Totally mind-blowing. Thanks for sharing, Hanna! x

    • hanna
      November 19, 2013


      You’re right, I loved the idea as soon as I heard about it. It’s just so simple!

  • Nathaniel
    November 23, 2013


    http://www.bbc.co.uk/news/magazine-23536914 there you go :) The guy deserves a medal

    • hanna
      November 24, 2013


      Thanks, I just read it!He’s seriously an inspiration.

Meet Hanna
Hanna's Places - a green lifestyle blog

Hanna’s Places is a green lifestyle magazine written by Hanna Ulatowski. It’s all about slowing down in a fast-paced society and finding ways to live a more sustainable, simple lifestyle.

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