Unverified85% confidenceFactTime unknown

国AA级台灯的均匀度要求为中心照度与半径30cm处照度比值≤3，比值越接近1桌面明暗越均匀，选购时可查看产品的照度均匀度检测报告

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护眼灯category

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Unverified桌面台灯护眼核心看照度均匀性，中心照度与边缘照度差异应控制在3倍以内；国AA级标准要求距灯30cm处照度≥500lx、50cm处≥250lx，仅标注流明数无法反映实际桌面照度85% similar Unverified护眼台灯优先选择通过国AA级照度认证的产品，AA级中心照度≥500lx且半径50cm内≥250lx，比国A级更适合长时间读写作业84% similar

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