price for 1 complete signal ( common anode )tri-colors SMD LEDs made4 targets, each target may show Red/Amber/Green light.4 wires for each target, the black wires are Common Anode wires, the color wires are cathode wires. ( message me right after payment if you need Common Cathode signal ), must wire 470 ohm 1/4W resistors with Green LED and 510 ohm 1/4W resistors with Red and Yellow LED if you need the green light shows along with the red or yellow light, or control them with my Master Board.pole position: upper target on left side while lower target on right side ( default ), or please message me right after payment if have special requirements )with thread base for easy installa...