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Quantity
1
Description
A 3mm red and warm white LED. Both in the same bulb. These are already set up with a resistor to work on your DC Model Train Power Supply 7-19 volt DC only.
These bidirectional bipolar LEDs will be red in reverse and warm white in forward. ...
Reviews
5.0
3 ratings
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3
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1
Perfect for the trollies
I used these red/white bicolor LEDs for my N scale city trolley. Headlite becomes tail lite when trolley changes direction. Perfect!
D
David · December 27, 2025
It simply works.
Absolutely perfect for what I needed. It works exactly as described. Ordering another one.