Isolated power is the best way to protect your signal path from unwanted noise and interference. The Big Joe Power Box provides eight Isolated, noise free, 9VDC power outputs: six 100mA and two 300mA. Various switch combinations allow 12V and 18V outputs options. Two of the outputs also feature variable (VAR) voltage controls to simulate worn out batteries. An AC courtesy jack for pedals requiring AC only is provided in the back, and multi color LED's for each of the eight outputs makes it easy to see the voltage selected for each output.