The TCS FL4 is a function-only DCC decoder for any scale, adding up to four extra lighting and effect outputs wherever you need them — commonly used for smoke coils, fireboxes, ditch lights, and step lights. Note: FL-series "Fleet Lighter" decoders do not provide motor control, so pair the FL4 with a separate mobile decoder. Browse more DCC Decoders and DCC Accessories, or shop the full Train Control Systems lineup. Features Function-only decoder — adds up to four lighting and effect outputs. Works in any scale; great for smoke coils, fireboxes, ditch lights, and step lights. Pairs with any mobile (motor) decoder — the FL4 handles lights only. Compact "Fleet Lighter" design fits where a full decoder will not. More Information Brand Train Control Systems (TCS) Item Number 1004 (FL4) Type Function-Only DCC Decoder (Fleet Lighter) Functions 4 Motor Control No (function-only) Scale Any Scale Condition New FAQ Does the FL4 control the motor?No — FL-series decoders are function-only. Use a separate mobile decoder for the motor and let the FL4 drive extra lights and effects. What is it used for?Lighting and effects the main decoder cannot handle — smoke coils, fireboxes, ditch lights, step lights, and similar. What scales can use it?Any scale — it is a small, universal function decoder.
