GS means German "Geprufte Sicherheit" (safety certified), also means "Germany Safety" (German safety). Voluntary certification, is the European market recognized German safety certification mark.
The GS mark is a voluntary safety certification mark that indicates that the safety of the product has been tested by a credible independent body.
GS certification scope.
Including power tools, information technology equipment and household appliances, lightings and lanterns, power supplies, etc.
The validity period of the certificate is five years, and an annual factory inspection is required.