The solar bottle bulb: "It's a divine light.........You can't get an electric shock from it, and it doesn't cost a penny." says Alfredo Moser

With only a plastic bottle, some water, a teaspoon or two of bleach and no electricity, you can produce a solar bottle bulb that emits the same amount of light as a 60 Watts incandescent bulb.

What??

Yes!! Alfredo Moser, a Brazilian mechanic pioneered this new innovation. He illuminated his house in Uberaba, southern Brazil with the first Solar bottle bulb during one of the countries frequent electricity blackouts in 2002.

How does it work?

Simple refraction of light. The solar bottle bulb works by refracting sunlight through the water and bringing it into the house.Fill an empty two litre plastic bottle with water, add two capfuls of bleach to protect the water so it doesn’t turn green with alga and to ensure a high quality light by keeping the water clean for a long time .The cleaner the bottle, the better. Mr. Alfredo Moser made a hole in his roof with a drill and then from the bottom upwards he pushed the bottle into the newly-made hole. He fixed the bottle with polyester resin (Glue) so that even when it rains, the roof never leaks-not even a drop. Depending on the intensity of solar insolation, the bottle can emit the same amount of light as a 40-60 watt incandescent bulb does.

Advantage and Sustainability

Coupled with the fact that it is virtually free,The solar bottle bulb is an environmentally friendly, zero carbon emitting alternative to the daytime use of incandescent light bulbs and kerosene. Once installed the bottle is estimated to continue producing light for a period of five years before having to be replaced.

Drawback

The solar bottle bulb produces no significant light when you need it most --- at night.

Reactions

In the last two years, this invention has spread throughout the world. It has received wide recognition and numerous projects are underway from Brazil to Argentina ,the united states, Switzerland, Philippines, India, Egypt, Kenya, Peru, Spain and even more countries. “Starting out in 2011 with one bottle and one beneficiary, right now we’re 140,000 homes in the Philippines,” Philippine social entrepreneur Illac Diaz told the BBC. Illac Diaz also said he’s already helped bring the bottle bulb to roughly 360,000 homes in 15 countries and expect to reach a million by the end of this year.