***OPEN BOX. GREAT CONDITION.*** Available Color - Grey Output Voltage - 0-18 Volts Amps - 3.4 Amps Magnetic - This power supply has a magnetic backing and will stick to any metal flat surface or flat workstation. 2 Machines - You can connect 2 machines. Hold down the knob for 2 seconds to switch between machines 1 & 2. The power supply will also memorize the last voltage used. Jump Start - Ok to run Cheyenne Motors and Pens. Double Tap on the knob quickly to activate the jump start mode. It will say "On" and double tap to turn "Off". 2 Pedal Modes - For those who do not like to hold down the foot pedal can use continuous mode. Just push down quickly on the knob to activate (the green light will light up) Then to turn off push quickly again to turn off the green light.