Unverified80% confidenceDecision RuleTime unknown
选择DC调光（直流恒流）而非PWM低频调光的夜灯，低频PWM调光在低亮度下频闪明显，长期对婴儿视觉发育不利，认准标注'无频闪'或'DC调光'
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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Unverified无频闪认证只是标注PWM调光的灯在低亮度档往往频闪更严重，儿童房和长时间用眼场景不建议买低亮度靠PWM调光的产品，应选DC调光或混合调光88% similarUnverified调光方式优先选DC直流恒流调光或高频PWM（＞3125Hz），低频PWM调光（尤其调暗时）会产生肉眼难察觉的频闪，是低价灯的隐藏坑88% similarUnverified认准无频闪（DC直流调光）产品，PWM调光在低亮度下频闪明显，长期照射不利于婴儿视觉发育；可用手机相机对准灯光测试是否有滚动条纹88% similarUnverified关注调光时的PWM频率或选择DC无频闪机型，低频PWM调光在低亮度下频闪严重，长时间用眼环境（书房儿童房）应选无可见频闪认证机型88% similarUnverified带DC调光或PWM高频调光（≥1250Hz以上或标注无频闪）的灯泡才能护眼，低价灯泡低亮度时用低频PWM，调暗后频闪明显加剧86% similar
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