In terms of products, has respectively by TUV and also in authentication;
While Varistor obtain the safety certificate include:
Varistor Safety Certificate
, Varistor UL1  Varistor UL2  Varistor
UL3  Varistor VDE1  Varistor VDE2  Varistor
VDE3  Varistor VDE4.

The company's overall quality certification
In the aspect of the company as a whole, has obtained ISO9001 and
ISO/TS 16949 certification.
ISO9001 certification:
Yang mei factory, kaohsiung plant, factory and DaLang factory in suzhou.
ISO/TS 16949 certification:
Yang mei factory, kaohsiung plant, factory and DaLang factory in suzhou.

The company's overall environmental certification
Environmental certification, Yang mei factory, suzhou factory and factory, kaohsiung
DaLang factory respectively obtain ISO14001 certification.