1 x HO scale railroad 3 colors block signal 3 heads for bridge cantilever #NB332

price for 1 signal part without base ( common anode )these signals are specially designed for using on signal bridge or cantilever signal.2mm LEDs madetop and middle targets show Green/Yellow/Red light, lower target shows Green/Red lightthe black wires are Common Anode wire, the color wires are cathode wires. ( message me right after payment if you need Common Cathode signal )Specifications:Brand: WeHonest Model.Size: Please check it from the above photo.Reference Scale: Suitable for OO/HO scale layouts.Operating Voltage: 3V DC only. ( do NOT use it on 12V DC directly, must wire a 620 ohm resistor with the black wire if use on 12V DC )Operating Current for each light: 20mA.Mat...