CE mark is a kind of Safety certification which is taken as the passport for manufacturers to open the European market. The product with "CE" mark can be sold freely in the EU markets.

UL Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product safety certification organization that has been testing products and writing Standards for Safety for over a century. It set to promote safe living and working environments for people by the application of Safety Science and Hazard-Based Safety Engineering, support the production and use of products which are physically and environmentally safe , and to advance Safety Science through research and investigation.

ISO9001 Series standard is the quality managerment and assurance standard enacted by TC176 in 1987. ISO 9001 quality management system is kind of quality assurance pattern for design, development,manufacture,installation and services.

RoHS certification (Restriction of HazardousSubstances) is newly promoted by CQC to help the manufacturers according to "the instruction to limit the use of toxicant and injurant" from EU.