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信号の電球って切れるんだ＾＾；
見たことないや。。。
それにしても税金凄い使ってそうだよね。
東京の信号は一瞬で全部新しいのに変わってるし・・・
信号は切れにくいようにするため電球ではなくてLEDのハズ。
だから電源系統がイカれたのでは。
あき>
「日本交通管制技術脱税事件」発覚当時、山形のその会社に友達が勤めていて大変そうだったよ。
Q>
表示がツブツブじゃないタイプもLEDが光源なんだっけ？