Unverified88% confidenceDecision RuleTime unknown
PWM调光频率≥1920Hz可显著降低频闪对敏感人群的眼部刺激，长时间夜间使用建议选择≥2160Hz的高频PWM机型
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88%
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Long-term
Relevance
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UnverifiedPWM调光频率≥1920Hz可显著降低敏感人群频闪不适，2160Hz以上为当前高频调光第一梯队；低于480Hz的PWM在低亮度下易引发眼疲劳94% similarUnverifiedPWM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89% similarUnverified真正护眼需高频PWM调光（≥1920Hz）或原生DC调光，1920Hz以下的PWM调光在低亮度时频闪明显，敏感人群仍会眼疲劳89% similarUnverified对PWM调光敏感人群应选择PWM频率≥1920Hz的机型，2160Hz及以上为高频调光第一梯队，低于1440Hz的高频PWM仍可能引发头晕眼胀89% similarUnverified真正无频闪需认准DC调光而非高频PWM调光，PWM调光频率≥3840Hz才能基本消除频闪对眼睛的影响，低于此值长时间使用易疲劳89% similar
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