- Controls searchlight or 3-light LED-based signals such as those from Sunrise Enterprises, Tomar, Oregon Rail Supply and others

- Adjustable yellow hue for searchlight signals
- Current limiting resistors included
- Requires no modification to track wiring or rolling stock
- Powered from AC or DC - draws about 25mA!
- Versions for controlling other signal types:

- SAD-SBCA for controlling Tomar semaphore motors, 3-light and Pennsy/B&O position light bulb-based signals such as those from NJ International (NJI), LED-based position light signals wired with a common anode (positive) such as those from Alkem Scale Models and Tomar. Replaces our former SAD-1, SAD-2, SAD-3, and SAD-4.

- SAD-CC for controlling Pennsy/B&O position light and 3-light LED-based signals wired with a common cathode (negative) such as those from Integrated Signal Systems (ISS) and Atlas. Replaces our former SAD-5 and SAD-6.

- Solid State Design (1 year limited warranty)