Unverified90% confidenceDecision RuleTime unknown

读写作业首选国AA级照度认证台灯，其对桌面照度均匀度要求更严（中心区≥500lx、扩展区≥300lx），比仅标注国A级更适合长时间近距离用眼

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专注台灯category

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Unverified国家标准中，读写作业台灯AA级要求灯具中心照度≥500lx，AA级半径50cm处照度≥250lx，是护眼灯的硬指标90% similar Unverified读写作业场景优先选国AA级照度认证台灯，中心照度≥500lux且半径30cm内均匀度达标，普通A级在长时间读写下易疲劳89% similar

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