This working traffic light comes assembled ready to fit. Just drill a hole in your baseboard, push it in and connect 2 wires to 9-16 Volts DC, DCC or even a 9 volt battery! It lights in the standard UK sequence and timing varies randomly - just like the real thing! Add a line of white paint around the traffic light head for the finishing touch. A really quick and easy way to add extra interest and realism to your layout in seconds!