Conclusion: Amazon US electronics products typically require a UL test report (issued by an ISO 17025-accredited laboratory), not a UL certification certificate. UL certification is a voluntary safety certification issued by UL; a UL test report is a data report issued after testing according to UL standards (such as UL 62368). The report turnaround time is 15–30 working days, with a reference cost range of RMB 1,000–60,000. The Shuwang Testing and Certification Platform can connect with partner laboratories to complete testing and issue reports.
If a product claims "UL certification" but has no UL authorization, it may be complained about for false advertising. Amazon review recognizes report numbers and laboratory qualifications; it is recommended to choose a CNAS-accredited laboratory.