s indicates the live wire interface,

n indicates the neutral wire interface.

The Bull socket is a product category of the Bull Group. The Bull Group was founded in 1995 and is a leading domestic professional supplier of high-end switches, sockets and converters. While providing high-quality products and services, the Bull socket has always been committed to creating a safer electricity safety environment for the public.

The Bull socket adheres to the development concept of loyalty, honesty, professionalism and focus. The Bull socket not only integrates professionalism into every aspect of the company's operations, but also actively promotes the construction of a harmonious corporate culture. It has become an industry leader with its innovative ability and leading technology.