Liter of Light

Liter of Light is a project in which simple means light is guided into spaces.

Using find a piece of sheet metal and a water-filled plastic bottle. The water bottle is used as a light guide. The top half of the bottle is attached to a hole in the ceiling that it is lit up by the sun outside. The refractive index of water in the bottle ensures that the sunlight is redirected downward. For locations without power supply and households that do not have windows in their homes for various reasons, a convenient method. The corrugated iron huts in the slums in the Philippines have no access to electricity.

The idea of ​​this principle goes back to the Brazilian mechanic Alfredo Moser, of the bottle with some bleach -filled addition in 2002 to prevent the growth of algae. According to the electrical engineer Clivenor de Araujo Filho, this illumination is the light intensity of a can produce 40 to 60 - watt incandescent bulb, without developing heat.