Opps, I meant 32 Leds to light up the "Subway" Part of my layout. As for the train, I will simply experiment with the 3 LEDs as you have said. I will probably use 1.8mm for the subway LED lights. A parallel layout looks like this
So I guess one Lionel CW-80 cant power 32 1.8mm Leds?
I have heard of LED strips also but im not sure how much resistance I will need for a particular strip of LED