Efficient, self sufficient lighting can therefore impact the well being of people who cannot function efficiently after the sun has set. This presents a barrier to education and economic development, not to mention literacy improvement. The main problem is that these tasks include homework or studies by adults and children, and without proper lighting, reading books or chalkboards is impossible. Being limited by the amount of sunlight during the day makes it very difficult to perform tasks efficiently at night. This is a very dangerous alternative that is unsafe, expensive, and provides very inefficient lighting. Lighting Issues Around the World Īpproximately two billion people, almost 30% of the world population have no access to electricity, thus relying on fuel-based lighting, such as kerosene wick lamps and candles. Cosmos Ignite Innovations, which provides lighting solutions for developing nations.SOLLIGHT TM, which is a solar LED system designed for wide mouthed water bottles.Barefoot Power, which develops AC and solar lighting products for the developing world and is involved with projects such as Lighting Africa and.These qualities have made LED lighting ideal for grass roots, low power applications such as this project, and have been used in similar endeavors. They also have extremely long lifetimes (anywhere from 10 000 to 100 000 hours) compared to incandescent bulbs (1000-2000 hours). First of all, LED's produce many more lumens/watt of light than incandescent bulbs, resulting in a reduced power requirement as well as increased running time when powered by batteries. The main advantages of LED use are the efficiency and lifespan compared to standard incandescent bulbs. This application will use white LED's, which can be used as a much more efficient replacement for incandescent light bulbs. LED's are semiconductors that emit light when a junction is exposed to a forward biased electrical charge (electro luminescence). LED is an acronym for a lighting system known as a light-emitting diode. ![]() The bottle cap will house the lighting equipment and act as the bulb ballast and the pop bottle will act as the diffuser and stand.īackground LED Technology The proposed design utilizes a recycled bottle and cap (with a cap diameter equal to or greater than that of a 2L pop bottle) as a portable, durable platform for a high efficiency LED lighting system that is charged using a small solar panel. If this design proves viable, the technical specifications as well as methodology and costs will be available to anyone who has access to the internet or to programs such as the One Laptop Per Child (OLPC) Program. The main goal of this Mech425 project is to design a simple, cost effective indoor light source that can be used in areas of the world that do not have access to electricity or safe lighting at night. Partially prototyped - needs full test with photovoltaics.
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