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光害.net　報道リンク集::秋芳洞の照明をＬＥＤ化
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秋芳洞の照明をＬＥＤ化
2009-11-15 21:02 (14 years ago)
2009.11.8　産経新聞
従来の白熱灯などの照明では、洞内の生態系が破壊されてきた。ＬＥＤ照明に切り替えることにより、植物の生育の抑制、温度上昇の抑制、電力量削減を期待。

http://sankei.jp.msn.com/life/lifestyle/091108/sty0911081600002-n1.htm
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