The Radial R15DC-UNIVERSAL switching power supply comes with multiple adaptors to connect to outlets in the USA, Europe, the United Kingdom, and Australia. This unit supplies 15V DC 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. This switching power supply is designed for use with all 15V DC Radial products, except the legacy Tonebone tube-based guitar pedals and the JD7.