Truetone 1 SPOT power supplies offer different specs depending on the model, from the basic 1 SPOT Slim (9V DC, 1700mA, single output) for powering many standard pedals with one plug, to the feature-rich 1 SPOT PRO CS12, which provides 12 isolated outputs with multiple voltages (9V, 18V, 9V AC) and high current (2900mA total) for complex boards, all with universal voltage input and noise isolation. Key differences are output count, voltage options (standard 9V vs. switchable/variable), amperage, and isolation features, with Pro models offering more flexibility for power-hungry pedals