Engineers test eco-friendly light emitting diodes (LED) in a 113-year-old lighthouse in Yokohama Port, south of Tokyo, on Nov. 19, 2009. The Japan Coast Guard switched the lighthouse to LED with a solar power generating device from incandescent lighting.
Source and Photo: Kyodo
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• Tags: Blue Goals Spot, Eco, Eco LED Lighthouse Test, Featured, LED LIghthouse, Technology, Thinking Green, Yokohama Lighthouse • Posted in: Bionicbong
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