Unverified75% confidenceFactTime unknown
PWM调光频率过低（＜1000Hz）的调光夜灯会产生频闪，长期使用对眼睛不友好，敏感人群应选DC调光或高频PWM（＞3000Hz）产品
1
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75%
Confidence
Long-term
Relevance
-
First Seen
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Unverified调光方式优先选PWM频率>3000Hz或DC直流调光的产品，低频PWM（<1250Hz）在低亮度时频闪严重，长期使用引起眼疲劳94% similarUnverifiedPWM调光(脉冲宽度调制)在低亮度档位时频闪风险增大，追求护眼应选DC直流调光或高频PWM(>3000Hz)的产品，纯氛围用途可放宽此要求93% similarUnverifiedPWM调光频率过低会产生频闪，防蓝光灯带若采用低频PWM调光反而伤眼，选购调光款需确认调光频率≥3000Hz或采用DC恒流无频闪调光91% similarUnverified关注PWM调光频率，低于1250Hz的低亮度调光会产生频闪，长时间使用易疲劳；优选宣称高频PWM（>3000Hz）或DC直流调光的产品，儿童房和书房尤其重要91% similarUnverified亮度调节精度上，PWM调光在低亮度档可能产生频闪，选择支持DC线性调光或高频PWM（＞3125Hz）的产品在低亮度下更护眼90% similar
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