Unverified82% confidenceFactTime unknown
护眼灯管照度需达标：书桌区域A级照度中心≥500lux、边缘≥250lux，照度均匀度≤3，仅靠单支灯管难以覆盖大桌面时需多支或搭配台灯
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82%
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Unverified书桌/阅读用的灯带作为主照明时，每米亮度需≥800流明且总光通量满足桌面300-500lux；氛围灯或间接照明选300-500流明/米即可，过亮反而刺眼86% similarUnverified亮度越高越均匀但灯体越长越重，中心照度500-700lux满足办公，追求高亮的长灯体(45cm以上)需注意小尺寸显示器(≤24寸)会显得比例失调且配重压屏85% similarUnverified桌面中心照度建议≥500lux（国标AA级读写台灯要求），屏幕挂灯因光源离桌面近，需看厂商标注的距桌面40cm处照度而非灯正下方数值85% similarUnverified书桌宽度≥1米建议选双光源或长条形灯头（发光长度≥40cm）的台灯，单点球泡灯头照射面积不足会造成桌面明暗不均85% similarUnverified国AA级照度但灯头照射面积偏小，大书桌（超过1.2米宽）用户需注意光照覆盖范围可能不够均匀84% similar
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