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　　What is the UL certification, then?

UL certification is a voluntary safety certification in the U.S., requiring product testing and factory audits. This includes four quarterly factory audits and one annual audit per year, plus the cost of the UL file number, making it expensive and time-consuming. Many small and medium-sized traders and factories find it difficult to bear the high costs of certification testing and subsequent maintenance fees.

　　What is the Amazon UL report?

All electronic and electrical products on the Amazon platform must be strictly tested according to the UL standards, accompanied by a certificate of compliance issued by an ISO 17025/ILAC ISO 17025 laboratory. No factory inspection is required, and the cost is relatively low with a fast turnaround time.

　　How long is the validity of the UL test report?

The UL test report remains valid for an extended period, assuming there are no updates to the American UL testing standards used.

Amazon UL report, what to do if product testing fails?