Topic:  Application In many of Africa's towns and villages, smoky kerosene lamps are all that keeps the darkness at bay after sunset. However, kerosene is a dangerous and increasingly expensive source of light for Africans who do not have access to electricity -- about three-quarters of those living on the continent, according to the World Bank.

Lighting industry entrepreneurs are hoping alternative devices such as solar-powered LED lights will replace the kerosene lamps.
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