Category BLOG

In order to enable consumers to have a clearer understanding of the certification marks on the purchased Korean power adapters, as well as to reduce the various certification costs burdened by power adapter manufacturers, in July 2009, the Korean Ministry…

PSE certification is a mandatory certification in Japan. Japan has released two sets of product catalogues for compulsory certification. Class A: * The electrical equipment and material products must be certified by a third-party certification body licensed by the Ministry…

UL is the abbreviation of the English Underwriter Laboratories (Underwriter Laboratories Inc.). The UL US-standard power adapter safety laboratory is the most authoritative in the United States, and it is also a larger non-governmental organization engaged in safety testing and…

GS power supply refers to the switching power supply with the GS logo that has been tested and verified in accordance with the European Union’s unified standard EN or the German industrial standard DIN based on the German Product Safety…

The FCC (Federal Communications Commission, US Federal Communications Commission) was established by COMMUNICATIONACT in 1934 as an independent agency of the US government and is directly responsible to Congress. The FCC coordinates domestic and international communications by controlling radio, television,…

The CB system is based on the IEC (International Electronics Council) standard, and the CB mark means that the manufacturer’s electrical and electronic products have been tested by the International Certification Body (NCB). CB certificate and test report are recognized…

In the European market, the “CE” mark is the unified mark of the EU member states for products, and electrical products entering the EU countries must bear the CE mark. It signifies to European customs that the product complies with…

A power supply usually contains more than one electromagnetic filter. The first filter is located where the mains is connected to the power supply. It can be found behind the 220v mains interface of a power supply. The main function…