Unverified79% confidenceCautionTime unknown
把'莱茵护眼认证'当作核心购买依据不可靠，该认证门槛较低（1250Hz PWM即可过），真正护眼要看具体调光频率数值和低亮度是否类DC
1
Sources
79%
Confidence
Long-term
Relevance
-
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Unverified护眼看PWM调光频率而非厂商宣传的护眼认证，认准1920Hz或3840Hz+高频PWM调光；低于1440Hz的调光在低亮度下对敏感人群易致眼疲劳，SGS/莱茵认证只是加分项81% similarUnverified护眼看类DC调光或高频PWM调光（≥1920Hz），单纯的'低蓝光认证'（如莱茵TÜV）不解决频闪问题；对频闪敏感人群优先查PWM调光频率而非蓝光认证标签81% 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80% similarUnverified追求健康护眼应选支持PWM频率≥3125Hz或DC恒流调光的灯带，并有无频闪/低蓝光认证（如莱茵TÜV Low Blue Light、IEEE 1789无频闪）；低价灯带常用低频PWM调光，调暗时频闪加剧80% similarUnverified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80% similar
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