Lights include red, green and amber bulbs. 3x Traffic Lights. It's just take you 1 minute. Black wire is for positive, the other three are for negative(each line corresponds to the color of the glowing colors, such as green line glows green).
3 Pieces Train Traffic Light LED 3-lights Crosswalk Lights for Train Railway
Albion Alloys Brass Micro Tube MT4 1.0 mm x 0.5 mm x 12" Pack of 3 Pieces (y)
SOMMERFELDT 197 HO Scale Brown Insulators 24 Pieces - Measurements 3.8 X 3.6 Mm
3 Pieces Model Train Traffic Light LED 3V 3-lights for Train Railway Fairy
VIESSMANN 4143 HO Scale Long Catenary Pack Mm. 360 - 3 Pieces