Unverified78% confidenceFactTime unknown
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
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Related Claims
Unverified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92% similarUnverified触摸调光和无极调光看似高级，但PWM调光（脉宽调制）在低亮度档位可能产生频闪，若产品未说明采用DC恒流调光，避免长期使用最低亮度档92% 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92% 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90% 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90% similar
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