PSE certification is a compulsory safety certification in Japan, including safety and electromagnetic capacity certification requirements.
498 products entering the Japanese market must pass the safety certification. Among them, 165 class a products should obtain diamond PSE mark, and 333 class B products should obtain round PSE mark.
PS: Round: test qualified certificate
Diamond: test + factory certification
Issued by: Circular: CTB
Diamond: CQC, TUV, etc