Powering about 20 Lionelville Buildings

There may be better and more sophisticated ways to provide power to your buildings with lights, but I would use a small transformer as the power source and Atlas Connectors.

The Atlas Connectors give you the option of turning on the lights of some of the buildings and keeping the lights off for others.

I did this recently for 4 light towers and the light for an O Scale house on my new Field of Dreams. I will post photos of it later. Arnold

Here’s a photo of my Field of Dreams:

Well, whether grain of wheat or LED, the total draw should not be excessive, so assuming they are all designed for track/accessory voltage (12-15 volts AC or DC), I'd probably dig out a spare small, single train set transformer and use it to power terminal blocks (two or three, or more if desired) positioned behind or underneath the shelf, using 16-18 gauge wire to feed them. Just about any small wire (22-28 AWG) would do to run from the terminal blocks to each of the accessories. A power line switch for the transformer will allow you to light or turn off all the accessories as a group. Easy-peasy!