The Digitrax TL1 is the Single Function-Only DCC Decoder with Transponding — a tiny function-only decoder with a single light output and integrated transponding. Goes in places where you need controllable lighting but no motor — FRED (Flashing Rear-End Device) tail-end markers, caboose strobes, passenger-car interior lights, or anywhere a transponder is needed without a full mobile decoder.3 modes of operation: Function-only DCC decoder with transponding Pure Digitrax transponder (no function output used) Function-only DCC decoder without transponding Single 125mA / 250mA-peak function output for lights / accessories Function controllable via F0, F1, F2, F3, or F4 (configurable) Supports both 2-digit and 4-digit addressing Configurable strobe feature — simulates FRED, EOTM strobes, Mars lights, etc. Tiny: 0.461″ × 0.31″ × 0.161″ (11.7 × 7.8 × 4.1mm) Programmable from any NMRA-DCC-compatible system About Digitrax: Digitrax is the North-American DCC pioneer.In stock at Oakville Model Trains Depot.