The Hornby locomotive decoders may be used with all standard digital control equipment that conforms to the NMRA standards. Control of the motor’s rotational speed (load compensation) Acceleration & deceleration separately adjustable Selectable for operation with 14, 28, 128 speed steps Programming on main track Four On/ Off function outputs. Two of the function outputs are dedicated for the head / tail lights. Operation on standard DC systems (analogue operation) possible