Smaller than any decoder at just .31" x .31" x .118" and utilizing the industry's smallest microcontroller and associated voltage control circuitry, the total module consumes less than 500 micro Amps (<1/2 ma). Typical peak operating current for these modules with LED(s) attached and running through full brightness curves range from 18-38 ma.

This makes them ideally suited for operation when powered directly by a function output of any of today's HO, N or Z-scale DCC decoders. Designed specifically to provide truly realistic lighting effects for 20ma LEDs, these modules include input protection against reverse polarity.

Input voltage range 6-18 volts DC, so they'll work with nearly every layout environment. On-board current limiting resistor. Extra input wires included.

This module reproduces alternating flashes (with increasing and decreasing brightness curves) as seen in the older early-era incandescent lamp driven traffic signals alternating between red and yellow (yield and stop) at intersections, or 2 alternating yellows, such as a school zone. Will drive two pairs of series-wired red or yellow (or mixed) LEDs without additional external circuitry.

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Connecting

Video of effect