A complete transformer & 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 & reverse switch plus LED indicators for mains supply & output power Outputs include non-variable AC & DC power for point motors & other powered accessories