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光害.net 報道リンク集::灯台をLED化、太陽電池化
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灯台をLED化、太陽電池化
2009.11.26 日本海新聞
境港の灯台の光源を白熱電球からLEDに交換。電源も太陽電池に。年間2.3トンのCO2削減に。

http://www.nnn.co.jp/news/091126/20091126033.html
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