Unverified80% confidenceCautionTime unknown
不要仅凭'1600万色'宣传判断显色质量，廉价氛围灯低亮度下会出现偏色、频闪和色阶断层；关注是否支持低亮度平滑调光和高刷新（≥1000Hz PWM或DC调光）更实际
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80%
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Long-term
Relevance
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Unverified无极调光比多档位调光更利于匹配环境光，但廉价PWM调光在低亮度档位频闪深度会显著增大，低亮度使用时优先选DC恒流调光产品88% 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87% similarUnverified亮度调节最低档能否'无频闪且不跳变'是关键，廉价PWM调光灯低亮度下频闪严重伤眼，卧室夜灯场景选支持DC调光或低亮度稳定(<1%)的产品86% 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% similarUnverifiedPWM调光（脉宽调制）在低亮度档易产生频闪，DC恒流调光全亮度范围无频闪但成本更高；预算有限时优先保证常用亮度档无频闪即可85% similar
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