Features: * The N Scale Signal System makes it easy to add working signals to new or existing layouts. New $30.96 (25% off). They can be used as a stand-alone accessory, or connected to one another for complete integration. Based on the common Type G 3-light signals, the models feature true scale dimensions and details, and include circuitry for North American prototype operation. Choose from a single target, double target, and bi-directional targets; single targets are also available in a four pack. * Features Include:. *Easy set-up No external relays required. *Scale dimensions and details. *Prototype operation circuitry. *Modular design with telephone-style cord connections (for use with mul