 
          The last issue is providing power and dimming for the LEDs.
        
        
          That’s not much of a problem for the single strip red and blue
        
        
          LEDs. For these I purchased two 12 vdc 2 amp power supplies
        
        
          for six dollars each. However to power the 6000 Warm white
        
        
          LEDs at 1 milliamp per LED works out to 6 amps! So the usual
        
        
          3A RadioShack wall adapter won’t handle the load! A 12 vdc
        
        
          20 amp switching power supply costs $33. The three dimmers
        
        
          will handle up to 8A and cost $5.50 each. I ordered all of the
        
        
          LED strips, power supplies and dimmers from Amazon.com.
        
        
          
            On to track laying
          
        
        
          So with this installment, the benchwork, roadbed, backdrop,
        
        
          fascia, and lighting are complete. Now it’s time to lay track,
        
        
          install wiring, and ballast. Did I miss something? Oh yes, run
        
        
          trains!