Power multiple Lego motors from wall plug

[Mattgintx]

I’m getting my Lego display setup and want to have the lego carousel, Ferris wheel and roller coaster run off  power motors but instead of the battery box i want the power to come from being plugged into the wall.  What’s the easiest/cheapest way to do this?

ultimately it will be on a switch that I can turn on/off to turn the entire display on.

[dr_spock]

The cheapest way for me was to wire an AC to 9V DC adapter to a LEGO AA battery box.  I had lots of old power adapters lying around.

 

[LegoDW]

Yes, you need a 9V DC wall transformer.  Just remove the connector and replace with a Lego one.  As far as a switch, you can get several different types, recommend one like in a lamp cord, few dollars at a home improvement store.