GB 20943-2007
AbolishedMinimum allowable values of energy efficiency and evaluating values of energy conservation for single voltage external AC-DC and AC-AC power supplies
单路输出式交流-直流和交流-交流外部电源能效限定值及节能评价值
Application Summary AI generated
This standard specifies the minimum allowable values of energy efficiency and evaluating values of energy conservation for single voltage external AC-DC and AC-AC power supplies. It is applied in China to regulate the energy performance of external power adapters used in consumer electronics, such as laptop chargers and mobile phone chargers, ensuring they meet mandatory efficiency thresholds for market entry and voluntary energy-saving certification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.