which gives you the ability to run the unit on either AC or DC

With its low current draw (Varies with voltage but typically 20mA) big power supplies are not needed

Trainz Product Id: 12178321

and 2 red marker lights will work in conventional operation and can be controlled digitally

Model Number: 28162

Atlas 3001265 O MKT Bicentennial Extended Cupola Caboose - 3 Rail DwDetails-0.76-0.60-9.15-6.15-5.15-2 which gives you the abilityThis is an Atlas 3001265 O Scale MKT Bicentennial Extended Cupola Caboose 3 Rail. Features Include: Full interior with crew figures, Illuminated interior, Flashing warning light on rear, All metal grab irons, Diecast chassis ,Barber Bettendorf caboose trucks with rotating bearing caps, Optional scale couplers supplied with all 3 rail cars and Minimum diameter curve: O 36 (3 Rail). Condition: Factory New (C 9) Operational Status: Functional Original