WBM Smart Multi-Function 10A Socket features a total of 5 sockets & 2 USB ports for charging. This 10A Socket can be used in your home & offices. This Multi-Function Socket can be installed yourself according to the installation steps. This socket ensures the protection of your devices from over-current, over-voltage, over-discharge & short-circuit issues. Cut the power supply before installing the switch. Connect N to the neutral wire & L to the Live wire.