Unverified78% confidenceTradeoffTime unknown
亮度越高越'护眼'是误区：照度过高（＞1000lx）反而增加眩光和疲劳，理想是环境光与台灯亮度形成合理对比，建议开启环境背景光而非仅用台灯
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Long-term
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Unverified遮光设计（下沉式光源+防眩光板）比单纯高流明更重要，能看到裸露光珠或直视灯头刺眼的灯，即便照度达标也会造成眩光疲劳87% similarUnverified亮度越高越亮但持续高亮会加剧眼疲劳，学习台灯应选无极调光或至少3档调光，能根据白天/夜晚环境光调节，固定单一亮度的灯不适合作主学习灯87% similarUnverified起夜照明亮度控制在5-15流明即可，过亮（＞30流明）会导致瞳孔收缩、彻底清醒；带无极调光或多档亮度的产品更实用，固定单一亮度容易过刺眼86% similarUnverified亮度与护眼存在权衡：高显色高护眼的LED光效偏低，同瓦数下比廉价灯珠暗，追求护眼需接受选更高功率(建议阅读灯≥6W/400lm)而非最省电型号86% similarUnverified护眼效果好坏更多取决于照射面积和均匀度，而非单纯亮度，宽发光面+导光板设计的大板灯比传统集中光源的小台灯眩光更小86% similar
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