This listing is for ONE (1) Modern issue medical grade, DC Power Supply Transformer. Standard USA AC 110V/220V INPUT. It has variable OUTPUT power levels of 0 to 30 Volts & 0 to 5 Amps. It is designed for scientific research & universities & such is a very clean power source. Power in Slot Car Racing gives each track lane enough power to predictably control throttle response. Cleaner power helps cars to run cooler, quieter & smoother, there by lasting longer. Please refer to the manual for specific limitations. This product should only be used by experienced professionals. DIGITAL DISPLAY Allows you to zero in on the best combinations of Voltage & Amperage for the class of cars you are running. This allows the racer to go back to the exact power level each time. Very helpful. Fuse-able link, fan cooled & AC/AC input voltage selector. Positive, Negative & Ground Terminals.

All electrical connections should be supervised by a trained electrical expert. Crossing power to the rails can cause damage to the transformer, track or your electrical service. All power supplies should be plugged into a good quality surge protection system. There are many ways to distribute power to a track. Early research planning can be greatly beneficial to end results. 

TOO MUCH POWER IS NOT A GOOD THING: It fries controllers, cars & tracks alike. Keep it down & increase incrementally. 

Please Be Aware: OVERWEIGHT 16+ POUNDS of Heavy Duty Power!