The sequence lasts between 9 and 30 seconds so that if you have more of them on the layout they won't all change at once. They are easy to fit and wire up. If you would like a single working Traffic Light, then you might consider the TTTL10 Traffic Light.
This product would be ideal for model railroad enthusiasts who want a safe and efficient way to control their systems, such as from a computer or digital signal system.
