The Walthers Mainline 910-220 HO Scale Budd Car LED Interior Lighting Kit brings realistic illumination to HO scale Budd passenger cars. Featuring warm white LEDs, a constant lighting circuit, and plug-and-play connectors, this kit is optimized for WalthersMainline Budd cars. It enhances nighttime operations and station scenes with prototypical interior lighting and includes all components and instructions for easy installation.