Unverified75% confidenceDecision RuleTime unknown
看重护眼选标注无频闪或频闪深度＜5%（低于Pst≤1.0标准）的灯泡，PWM调光频率应≥3125Hz，低价灯泡低亮度时易出现肉眼可见频闪
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Unverified看重护眼选无频闪认证（不闪烁或频闪深度＜5%）+ 显色指数Ra≥90，低价氛围灯常用PWM低频调光在低亮度档位出现明显频闪94% 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% similarUnverified调光方式优先选0-100%无级线性调光且低亮度无频闪的型号，PWM调光在低亮度下拍摄可能出现横纹，选高频PWM(≥25000Hz)或DC调光可避免88% similarUnverified廉价彩色灯泡常存在'低亮度频闪'问题：在低亮度或某些颜色下PWM调光频率过低(＜1000Hz)会导致肉眼不可见但影响眼睛疲劳的频闪，长时间使用场景应选标注'无频闪/高频调光'的型号88% similarUnverified护眼灯必须通过IEEE 1789-2015豁免级（无风险）频闪标准，即在3.125Hz以下调光深度极低；标注'无可视频闪'但无第三方检测报告的产品不可信，PWM调光频率应≥3000Hz或采用DC恒流调光88% similar
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