Unverified70% confidenceFactTime unknown
调光方式分PWM（脉宽调制）和DC（直流）两种，低频PWM在低亮度下可能产生频闪，对光敏感人群应选DC调光或高频PWM产品
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70%
Confidence
Long-term
Relevance
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First Seen
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Unverified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90% similarUnverified调光方式优先选DC直流调光或高频PWM（≥3125Hz），避免低频PWM调光；低频PWM在肉眼不可见的情况下仍会造成视疲劳累积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87% similarUnverified调光方式优先选无频闪（DC调光或高频PWM＞3000Hz），低频PWM在低亮度下频闪严重，长时间近距离使用易致眼疲劳86% similarUnverified无极调光比多档位调光更利于匹配环境光，但廉价PWM调光在低亮度档位频闪深度会显著增大，低亮度使用时优先选DC恒流调光产品86% similar
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