it determines whether the white light (head) or red light (tail) lights up

Trainz Product Id: 12308829

Trainz Product Id: 12467141

Trainz Product Id: 12398306

This is a Walthers 949-2403 HO Scale Chicago & North Western 35' Fluted-Side Trailer (2) Assembled (yellow

MTH 20-20180-1 Hudson Bay SD50 Diesel Engine w/Proto-Sound 3.0 (Hi-Rail Wheels) DwDetails-0.20-0.20-12.00-6.00-6.00-2 it determines whether the whiteFeatures Directionally Controlled Headlights Intricately Detailed ABS Body Metal Wheels, Axles and Gears Diecast Truck Sides, Pilots and Fuel Tank (2) Remotely Controlled Proto Couplersr Colorful Paint Scheme Metal Chassis Metal Handrails and Decorative Horn (2) Precision Flywheel Equipped Motors Locomotive Speed Control Proto Scale 3 2 3 Rail 2 Rail Conversion Capable Lighted Cab Interior Illuminated Number Boards Lighted Marker Lights (2) Engineer