I supply two major categories of products for riding scale railroads:
Signal Heads
This encompasses a variety of signal heads that are injection molded using UV resistant ABS plastic. If there is a need for other signal types (Position Lights, Searchlight Signals, etc.) let me know and I can see what it would take to fill the need. See Signal Head Products Page for more information on the individual products.
Signal Control System
I have designed and built a micro-controller based signal system that can handle just about any need that might arise in ride-on scale railroads from very modest to very complex. See Signal Control Products page for more information.