Prototype: German Federal Railroad (DB) electric locomotive, road number 111 137-6. B-B wheel arrangement. Built starting in 1974. Use: S-Bahn service. Model: The locomotive has a built-in digital decoder and sound generator for operation with DCC and Selectrix. It also has a motor with a flywheel. 4 axles powered. Traction tires. The headlights and marker lights change over with the direction of travel. Warm white LEDs are used for the lighting. The headlights, marker lights, and engine room lighting can be controlled digitally. The locomotive has a close coupler mechanism. The headlights and marker lights change over with the direction of travel in analog operation.Length over the buffers 104 mm / 4-1/8.