Unverified88% confidenceDecision RuleTime unknown
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
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UnverifiedIEEE 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84% similarUnverified购买时应认准明确标注屏蔽频段（13.56MHz和125kHz）及衰减值（如≥60dB）的产品，只笼统写'RFID Blocking'而无频段和参数的属于营销话术，验证成本高78% similarUnverified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77% similarUnverified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74% similarUnverified带声光报警阈值可自定义的机型更实用，应确认报警阈值可设为0.08mg/m³（国标）而非固定的0.10；部分廉价机报警阈值虚高，超标了也不报警73% similar
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