D.light Design enable households without reliable electricity to attain the same quality of life as those with electricity. They begun by replacing every kerosene lantern with clean, safe and bright light. They hope to improve the quality of life of 10 million people by the end of 2010,50 million people by 2015 and 100 million people by 2020.

Its Solata model — an average-looking desk lamp — provides 15 hours of light on a full charge and is five to six times brighter than kerosene. Like the Nova, it comes with a portable, detachable solar panel. Its pretty simple and very good for developing the developing world.

All three products are manufactured fairly cheaply, and sold for more than $10 but generally less than $20. This sounds like a hefty price tag for regions where the average daily income is significantly below $10, but that’s built into D.light’s business model.
Source: Venturebeat