price for 1 complete signal ( common anode )SMD LEDs made2 independent targets, top target may show Yellow/Red and lower target may show Green/Red light.will come with a number board as photo shows ( simply assemble needed )4 wires for each target, the black wire is Common Anode wire, the color wires are cathode wires. ladder position: on right side ( default ), please message me right after payment if you need the ladder on left side signal.with thread base for easy installation.common cathode signals available if message me right after payment.Specifications:Brand: WeHonest Model.Size: Please check it from the above photo.Reference Scale: Suitable for OO/HO scale layout...