Unverified78% confidenceDecision RuleTime unknown
无频闪（Flicker-Free）需认准全亮度范围无频闪，部分机型仅在高亮度无频闪，低亮度切回PWM调光，购买前应查测评的低亮度频闪实测数据
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Unverified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87% 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86% 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85% 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85% similarUnverified标称'无频闪'不等于全亮度无频闪，部分屏幕仅在100%亮度DC调光、低亮度切换PWM，实际使用亮度多在30-50%，需查第三方低亮度频闪实测84% similar
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