I am about to order a bunch of stuff to continue lighting our passenger coaches. LGB used to sell small, cylindrical connectors with a male and female ends. Littyle screws made them fast to the the bitter ends of their coach lights. This let you string a bunch of cars together from a power source. What is the commercial name for these connectors? Or is their an equally easy to wire and easy to use unobtrusive alternative? We need to uncouple our coaches to store them, so quick disconnect is a priority.