Powerful decoders suitable for the largest and most power hungry locomotives with a huge range of additional functionality to simulate the operation of a real locomotive. TCS decoders feature Dither functionality for even slower slow speed control and quiet drive for smoother motor running. Function controls allow for lights to flash (beacons etc.) dim (like headlights), and flicker (firebox effects). A data sheet is supplied with each decoder which has space to record details of the locomotive the decoder is fitted to and the CV settings used.