TTLFX3 Lighting Effect Traffic Light Controller Dinosaurs Extra vents and transfers are

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TTLFX3 Lighting Effect Traffic Light Controller Dinosaurs Extra vents and transfers areThis set simulates an automatic traffic light sequence. The LEDs alternate from Red, Amber and Green just like the real things. The sequence is set up for random intervals between 9 and 30 seconds so that if you have others installed on the layout all the traffic lights do not change at the same time. This unit can be powered by a 9 16v supply or by attaching it to your DCC Bus. CONTENTS: 1 x LFX Control Board 1 x Amber LED 1 x Red LED 1 x Green LED