In 2002, the Brazilian a technician Alfredo Moser came up with a kind of technology without using electricity during the day lighting : insert plastic bottles filled with pure water and bleach on the roof. Under the equal area, the brightness of the plastic bottles provide far more than the window, and it can be recycled.
In 2011, ngos MyShelter foundation will be the lighting technology is introduced in the Philippines, the Philippines, some poor residents living area housing is very dense, the light from the window, even if the day is equivalent to the night, but the sun plastic bottles can provide illumination of 40 to 60 watt light bulb( equal to 5W led light bulb). In the past two years, Moser invention spread to the world of lighting plastic, there are millions of households to early next year is expected to benefit from his invention.