The difference between PSE diamond and round

 PSE certification is a mandatory safety certification in Japan to prove that electrical and electronic products have passed the safety standard test of Japan Electrical and Raw Material Safety Law or international IEC standards.

According to the law, 506 products must pass the safety certification to enter the Japanese market.

Among them, 165 kinds of A products should obtain diamond PSE mark, and 341 kinds of B products should obtain circular PSE mark.

PSE diamond certification: which is easy to cause electric shock, fire and other accidents, there are 165 kinds of dangerous products, classified as "specific electrical products: called A class electrical products", such as chargers, adapters, etc.;

PSE round certification: the rest of the 341 products with less harm are classified as "non-specific electrical products: called B class of electrical products", the vast majority of large and small home appliances, lamp products, lithium batteries, etc.

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