Unverified90% confidenceDecision RuleTime unknown
PWM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
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UnverifiedPWM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94% 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92% similarUnverified亮度调节优先选PWM高频调光（≥2000Hz）而非降压调光，低频PWM在低亮度时肉眼可见频闪，长时间伏案会加重视疲劳90% similarUnverifiedPWM调光频率≥1920Hz或采用类DC调光才算真正护眼，低于360Hz的低频PWM长时间使用易导致眼疲劳；对频闪敏感人群应认准全程DC调光或高频PWM≥2160Hz机型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% similar
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