What kind of wall switch is of better quality? What kind of copper is used in it?

Simon Switch's wall switches are of better quality and are made of tin-phosphor bronze.

1. Simon Switch is a century-old Spanish brand. It uses imported PC materials with good flame retardancy and strong safety performance. Several colleagues around me use this brand of wall switches during renovations.

2. Simon Switch has many patents. After all, it has been engaged in sound production and research since 1916, so it is very professional in the field of switches and sockets, including our Bird's Nest and Water Cube, which use their switches and sockets.