天气预报 > 其他 > 怎样判断护眼灯的好坏
怎样判断护眼灯的好坏
更新时间: 2020-07-06 00:00:00  

选购护眼灯:

1、主要看是否有频闪和辐射,频闪对眼睛不好。频闪最简单的查看方法:用手机或者数码相机的屏幕,去看高频护眼灯,如果呈现光的波动和闪烁,是交流电产生的频闪,是造成眼睛近视的重要原因之一。

2、现在一般推荐购买直流护眼灯。

3、选购时注意看是否有国家认证的3c标志,是否通过相关部门的检测。

关键词: 怎样 判断 好坏

怎样判断护眼灯的好坏相关经验

天气预报

最新推荐

页面:/news/view-3448684/ | 耗时:0.4519 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=3448684 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3448684 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3448684 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1107965,1106054,1114957,1110031,1112032,1091952,1099553,1086872,1117620,1101783,1085162,1100899,1094811,1094053,1070014,1054934,1103971,1103895,1051135,1100583,1073066,1051711,1107058,1102814,1070088,1114048,1102438,1046963,1107997,1061426) ORDER BY field (ArticleID,1107965,1106054,1114957,1110031,1112032,1091952,1099553,1086872,1117620,1101783,1085162,1100899,1094811,1094053,1070014,1054934,1103971,1103895,1051135,1100583,1073066,1051711,1107058,1102814,1070088,1114048,1102438,1046963,1107997,1061426)