User`s manual

4
draw 350mA or less. Moving to a higher capacity power supply will
allow you to phantom power MIDI controllers with higher current
requirements – just add the current requirement of the device with
the Switch Gizmo’s requirement (150mA) and make sure your
adapter can supply at least that amount of current.
Power – This unit requires power supply in the range of 9 to 12 volts,
AC or DC. The plug should be a 5.5mm/2.1mm barrel connector,
similar to those used in most effects pedals. The Switch Gizmo
requires a minimum of 150mA of current.