A liter of light is made by filling an old plastic bottle with water and bleach, then installing it through a roof. It refracts sunlight to provide 55-60 watts of light without electricity, making it popular in slums and disaster areas. Over 10,000 have been installed in Manila alone.
A quart light is an alternative lighting technique used to provide interior lighting without electricity. To make a liter of light, people take an old 1-litre plastic bottle, fill it with water and some bleach, then put it through a small hole in a roof. This can provide 55-60 watts of light per bottle, all without electricity. The way it works is that the water in the bottle refracts the sunlight from outside, beaming light in all directions and providing an economical and sustainable source of lighting. The liter-of-light method has become increasingly popular in slums and disaster areas where constant electricity is hard to come by.
Learn more about alternative lighting:
A quart of light can be set up in about an hour and can last up to five years.
More than 10,000 liters of light were installed in the slums of Manila, capital of the Philippines, during a three-month period in 2011.
Liters of light have also become popular in Haiti, parts of the Middle East and Brazil.
Protect your devices with Threat Protection by NordVPN
