solar-LED lamps Archives – The Green Optimistic green tech news, since 2008 Thu, 12 Nov 2009 06:37:09 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Plastic Solar Cells with LEDs Offer Cheap Lighting in Poor Countries https://www.greenoptimistic.com/plastic-solar-cells-with-leds-offer-cheap-lighting-in-poor-countries-20091112/ https://www.greenoptimistic.com/plastic-solar-cells-with-leds-offer-cheap-lighting-in-poor-countries-20091112/#respond Thu, 12 Nov 2009 06:37:09 +0000 https://www.greenoptimistic.com/?p=5318 According to a study, there are about 1.5 billion people in developing countries who do not have electricity, the majority of them using kerosene lamps for light after sunset. But now, thanks to the researchers from Denmark, the lighting problem could disappear.

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