A complete transformer and speed control unit with built-in control for two separate trains, extendable to four trains by adding slave control units (HM2000+). Power output is two Amps, with compensation to regularise speed under varying conditions of load. 'Positive off' rotary speed control cuts all power when the control knob is turned to Zero. Features include forward and reverse switch, plus LED indicators for mains supply and output power. Outputs include non-variable AC and DC power for point motors and other powered accessories.