Diamond and round PSE certifications differ in the following aspects:
Certification Nature: The diamond-shaped PSE certification is mandatory; all electrical products entering the Japanese market must obtain this certification. The circular PSE certification, however, is voluntary and not a mandatory requirement under Japanese law.
Applicable Product Range: The菱形PSE certification applies to specific electrical appliances, including 165 types such as chargers, adapters, etc. The圆形PSE certification, on the other hand, applies to non-specific electrical appliances, covering a broader product range, such as batteries, mobile power banks, humidifiers, power tools, household appliances, and more.
Safety Requirements: Due to the mandatory nature of the diamond-shaped PSE certification, it imposes stricter safety requirements on the product. The circular PSE certification is relatively more lenient.
Factory Audit Requirements: The diamond-shaped PSE certification requires an audit, while the circular PSE certification does not.
Certificate Validity: The certificate for diamond-shaped PSE certification is valid for 3-7 years, whereas the circular PSE certification has no expiration limit.
In summary, the main differences between diamond and round PSE certifications lie in the nature of certification, scope of applicable products, safety requirements, factory audit requirements, and certificate validity periods. Companies should choose the appropriate PSE certification type based on the characteristics of their products and market demand.
