Monday, August 15, 2011
Bringing solar light bulbs to the world
[ Mon, 15 Aug 2011 06:35:11 EDT ]
It started with such a simple concept: A solar light bulb that charges up during the day and lights the night when the sun sets.
[ Mon, 15 Aug 2011 06:35:11 EDT ]
It started with such a simple concept: A solar light bulb that charges up during the day and lights the night when the sun sets.
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