HO Traffic Lights Face Plate
thingiverse
Revised the face plate to make the sun visors more uniform. I left the body of the signal alone. Image is of the original body with the revised faceplate. The holes take 5mm LEDs perfectly. If you can find 5mm "top hat" LEDs in the colors you want, they would look best. But regular LEDs (as in the finished photo) work just fine.
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