Power supply unit for large, digitally controlled layouts. The maximum current supplied is 2.5 amps. The unit has an LED pilot light. Like the 6021 Control Unit, this unit has a controllable voltage reduction for slow speed sections. The unit has 2 terminal clips each for the track and a transformer. The unit has a connection socket for both the Control Unit and an additional booster (item no. 6017). 1 adapter cable is included for connections to the Control Unit. Dimensions 135 x 120 x 80 mm / 5-5/16" x 4-3/4" x 3-1/8".