They are compatible with all O and O-27 trains

Trainz Product Id: 12107201

This is a Bachmann 17604 HO Southern 40' Quad Hopper #352450

This is a Kato 176-9005-DCC N Scale Metrolink EMD F40PH Diesel Locomotive with DCC #800

As demand for coiled steel increased

Lionel 2056130 HO 2-Way Traffic Light with Switch ProductID_11542353 They are compatible with allThis is a Lionel 2056130 HO 2 Way Traffic Light with Switch. Features: Requires 14V DC Power, Updated to LED Lighting, Brass and plastic construction Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Lionel Model Number: 2056130 MSRP: $28. 99 Scale Era: O Modern Model Type: Accessories The Trainz SKU for this item is P12487214. Trainz Product Id: 12487214