Unverified80% confidenceDecision RuleTime unknown
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
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Unverified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94% 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91% similarUnverified带亮度调节应做到0-100%无级调光且低亮度不频闪，廉价灯低亮度档常出现PWM频闪，慢门或高帧率拍摄会出现横纹91% similarUnverified'无频闪'需看是否通过频闪豁免（波动深度<8%）或过IEEE 1789无频闪标准，很多低价灯用PWM调光在低亮度时频闪明显90% similarUnverified低亮度下的调光平顺度和无频闪同样关键：便宜的PWM调光灯在1%~10%低亮区间会闪烁或跳档，拍高速快门/慢动作会出现横纹，需选支持高频无频闪调光的灯89% similar
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