price for 1 complete signal ( common anode )SMD LEDs made2 independent targets, top target show fixed Red color and lower target show Red/Amber/Green light.exclusively used at Junctions or sidings where they are only diverging / merging with the mainlinewill come with a number board as photo shows so that they can be used as Absolute Signal, Intermediate Signal or Distant SIgnal. ( simply assemble needed )6 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.commo...