Unverified88% confidenceDecision RuleTime unknown
标注的lux值必须注明测量距离，商家常用「表面lux」（灯面0cm）夸大数据，真实有效值应看30cm处读数，两者可相差3-5倍
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88%
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Unverified整卷长度虚标常见，尤其电商廉价卷；同宽度下(常见30cm/50cm)重量是更可靠的实际用量指标，可要求商家标注净重72% similarUnverified标注卷长时要区分'实米数'和'虚标'；用米重（如1卷100g）或明确标注'足米'的产品更可靠，很多低价卷用'圈数'代替米数掩盖短卷70% similarUnverified卷长标注常有虚标，同宽度下号称100米实测仅60-80米很常见；比较时应以卷径大小+重量而非单看标称米数判断真实用量69% similarUnverified长度覆盖80-130mm多种规格，选购时应根据fitting数据确定所需reach值，而非凭感觉选长度68% similarUnverified尺码普遍偏大，建议参考店铺尺码表量手围后选小一号67% similar
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