These options allow you to add warm white LED for each vestibule. Streamline cars typically have only one vestibule. Not recommended for full length vista dome, baggage, or RPO. Two may be added for most Heavyweight cars except the tail-end (aka Observation) and none for baggage and RPO. The more expensive kit is added to the regular passenger kits prior to shipment and may take extra time (typically a day) for us to put them in place.
The less expensive kit only provides the parts for a D-I-Y installation.
The accompanying photos show installation in heavyweight cars but the effect is the same for the streamlined cars. Note that these kits are not needed on 72′ scale cars (18″ cars) as the standard kit is long enough to light vestibules for most applications.