I have a 3' diameter E-Z Track layout which runs around our Christmas tree and is powered by a basic Bachmann DC power pack.  I found a DCC-equipped Bachmann Alco 2-6-0 I would like to run on it, but I was told by the hobby shop sales person that the engine will run on DC, but the light will only work if run on DCC.  That is a deal breaker.  Is that information correct?