Unverified88% confidenceDecision RuleTime unknown
频闪控制看波动深度，符合IEEE Std 1789-2015'无风险'等级（100Hz以下波动深度<8%）才算真无频闪，宣传'DC恒流'不等于无频闪，需看第三方检测报告或视频光标法自测
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Unverified无频闪需看波动深度而非仅看'DC调光'宣传，认准通过豁免级（IEEE 1789无风险）的检测，波动深度在3125Hz以下应<8%，专业检测报告比商家话术可靠87% similarUnverified频闪认准符合IEEE PAR1789豁免级（无风险级），即在100Hz以下调制深度＜8%、3125Hz以上无频闪风险，宣传'无频闪'但无认证的多为直流恒流驱动，成本更高更可靠77% similarUnverifiedIEEE 1789标准规定：频率＜90Hz时频闪深度需＜3%为豁免级，90-1250Hz需低于频率×0.08%，达此标准即视为无频闪危害74% similarUnverified无频闪需依靠直流恒流驱动或高频驱动（≥3125Hz），警惕仅标注'无频闪'却无驱动方式说明的产品，可用手机慢动作摄像测试灯管是否有明显条纹70% similarUnverified标称频响范围必须看正负偏差，无标注±3dB的频响数字（如"20Hz-20kHz"）参考价值极低；真正评价低频看-3dB或-6dB下限频率70% similar
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