Unverified78% confidenceCautionTime unknown
床头夜读不要选无高频调光/直流恒流方案的廉价灯，PWM低频闪烁在暗环境下长期使用易头晕眼疲劳
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
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Unverified睡前使用的灯具需支持无极调光并能降至10lux以下的极低亮度，PWM低频调光在低亮度下会产生频闪，优先选DC调光或高频PWM（≥3000Hz）以避免眼睛疲劳85% similarUnverified光线亮度上限较低，仅适合氛围照明和助眠，不能替代床头阅读灯84% similarUnverified评估睡眠灯是否护眼应看是否无频闪（DC调光/高频PWM）和无蓝光风险；低价PWM低频调光款在最暗档易出现肉眼不可见频闪，长期使用可能引起视疲劳84% similarUnverified调光要选支持PWM高频调频或DC无频闪调光的产品，低频PWM调光在低亮度档位会出现频闪，长期夜用伤眼且干扰睡眠84% similarUnverified选购时应确认低亮度下的无频闪能力，认准DC调光或高频PWM（≥3000Hz）标识，无频闪信息的低价助眠灯在夜间低亮使用时可能加重眼疲劳83% similar
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