Another U.S. UL, ETL and other certifications, which are voluntary, unless the customer requirements, or can not do.
The full name of the 3C certification is "Compulsory Product Certification System", which is the Chinese government to protect consumer safety and national security, strengthen product quality management, in accordance with laws and regulations to implement a product conformity assessment system. The so-called 3C certification, is the China Compulsory Product Certification system, the English name China Compulsory Certification, English abbreviation CCC.