Unverified90% confidenceDecision RuleTime unknown
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
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