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如何延长日光灯管寿命 【打印本稿】　【进入论坛】　【推荐朋友】　【关闭窗口】 2006年12月30日 15:25     日光灯管使用数月后会两端发黑，照明度降低。这时把灯管取下，颠倒一下其两端接触极，日光灯管的寿命就可延长一倍，还可提高照明度.   来源：中国经济网综合 相关新闻    请发表您的看法  目前已经有条评论   发言最多为2000字符（每个汉字相当于两个字符）      [an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]

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