How to light a room without electricity with water filled plastic bottles. It couldn't be easier. This is a film from the Phillipines where corrugated iron roofs make homes dark 24 hours of the day. This idea could be applied to cob and adobe houses as well and of course garden sheds!
The idea was pioneered by Brazilian Engineer Alfredo Mozer in 2002.
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Natural lighting
What was the additive that was put in the water with a bottle cap.
natural lighting
I think it was chlorine - I've just joined this site and listened to the clip but it was hard to hear.
Free Solar Lighting
I looked it up elsewhere: it uses purified water, a bit of salt and three bottle caps full of chlorine bleach.
Free Solar Lighting
I saw this over a year ago being done by a guy in Brazil. I'm not sure where the "technology" came from, but I do know that I saw this on youtube 1 year ago in a similar story done by the Brazilian fellow who claims to have developed these lights. If I can find the link, I'll post it here.
Turn off the lights
How do you get these to turn off? or are they solar powered and turn off on their own at night?
To Evath
The light is a diffuser - when it is dark it doesn't work - the usefulness of the device is that in many shanty towns the houses are made with7blocks with tin roofs - so it is dark in the daytime.
natural light in the daytime
the chlorine in a sealed bottle stops the water from greening up from algae so lights would not work after a while. This same "technology" is used in more advanced countries to give natural daylight to inside rooms of houses, except it will cost you a lot more from contractors
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