The British General Black Nickel Double USB Socket is ideal for charging devices such as smartphones, tablets, cameras and more. No longer do you need to find multiple adapters, just put your USB lead into the USB socket and keep your devices fully charged. The two 13A plugs can be used whilst USB devices charge. The Smart USB enters standby mode when the device is fully charged and auto-detects USB devices and adjusts the charging pattern. It's a great replacement and fits a 25mm wall box. Simply remove your old socket, with no need to adjust your wall-mounting box. It has colour-coded terminals for quick and easy installation. Twin Earth fitted as standard. ASTA approved. Always read the instructions.