Liter of light is an open source design for a low cost light tube that refracts solar light to provide daytime interior lighting for dwellings with thin roofs.
2 liter bottle roof light.
The liter of light project was launched six months ago by the my shelter foundation a philippines based ngo which aims to provide light to 1 million of the roughly 12 million homes who are either.
Hanging the light from the roof is not to difficult either the bottle s neck provides sufficient grip.
A transparent two liter bottle is filled with water plus a little bleach to inhibit algal growth and fitted into a hole in a roof.
The power of the sun is harnessed using a bottle full of water quite simply they re used 2 liter soda bottles.
The combined effects of ultra violet light uv induced dna damage thermal inactivation and photo oxidative destruction inactivate disease causing.
No need for serious hole in roof just a small one to pass wires through.
The installation also has a small power 500 charger for a lipo battery and a light switch for obvious reasons.
Apr 8 2013 2 liter bottle of water in roof provides as much light as 60 watt light bulb.
Using recycled plastic bottles 10 ml of bleach and distilled water the bottle is placed through galvanised steel roofs.
How to turn a 2 liter bottle of water into a 50 watt lightbulb.
Liter of light day is an affordable diy lighting system that allows the sun s rays into homes schools and public centres for us 2 per unit.
Good idea in a garden shed and or chicken coop.
You can help out people bring light to people s h.
Here s a way to brighten up enclosed spaces in an environmentally friendly way.
We were fortunate enough to work with the people over at the liter of light foundation for this short film.
By cutting holes in his workshop roof the new water bottle lightbulbs could shine the sun s rays directly into his dark.
The device is simple.
Sunlight refracts through the bottle to light the space below with 55 watt of.
Daylighting is cheaper than using indoor electric lights during the day.