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People often required to travel between different countries need to carry an adapter socket outlet for their electronic devices charged. If people cannot charge their digital mobile in time, not only their work efficiency will be reduced, daily life will also be inconvenient.
Rotating socket is a specialized outlet designed for international youth hostels and large international hotels. To select different types of sockets of different countries, people only need to turn the outer protrusion ring; the turntable hidden behind the wall can be rotated to the corresponding position. People can choose diverse types of sockets.
Bergische Universität Wuppertal