Hurricane HP-2 Digital Power Supply-Black.. Advanced digital micro processor controlled unit. Fully digital microprocessor control Precision regulated set point voltage 0 18volts 2. 3 amp built in overload protection User selectable resolution . 1, . 2, or . 5 volt increments Time of day Stop Watch Liner Shader presets now with 2 machine or 4 machine memory modes. The foot pedal can be set up as Momentary or Maintained: Momentary (press foot down to power on, lift foot up to power off)