The Radial 15V Switching power supply is designed for use with 15V Radial products and comes with multiple adaptors to connect to outlets in the USA, Europe, the United Kingdom, and Australia. This unit supplies 15V at 400mA with a center-pin positive barrel connection, and can be used with any power grid where the mains voltage range is 100-240V, 50-60Hz. Please note that the Radial 15V Switching power supply is not compatible with all current and legacy Radial and Tonebone 15V devices, please check below for a regularly updated list of compatible products.