Eco-friendly LED Lighthouse Test in Yokohama

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: KyodoRelated PostsCompletely Wireless Charger invented by SONY! Unive.... (more)

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