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.
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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.
