As pedal designs changed and it became more common for digital pedals to require isolation, musicians needed something other than 9V DC which the 1 Spot offers to they could get more power and versatility which the 1 Spot Pro now can offer, using the same proprietary technology as in the 1 Spot. 7 fully isolated outputs 3 voltage options provide power for 99% of effect pedals: 9Vdc, 12 Vdc and 18 Vdc Includes brackets for mounting under pedalboards Worldwide Input Voltage Cables and converter plugs included: (4) DC18 (5.5x2.1mm barrel plugs, 18 (457mm) - White (3) DC12 (5.5x2.1mm barrel plugs 12\" (305mm) - Yellow Converter Plugs: (1) CL6 - Green (1) CYR - Red (1) C35 - Black (1) CBAT - Black battery clip \"