Just for those of y'all that don't use NCE. I use a 1157 bulb with my Digitrax and it works like it's supposed to. I mounted it at the center of my layout/command station, visible all long my shelf layout. And it has functioned perfectly. No matter where I stand, if I see it flash or light up. I know instantly where the problem is. And it's usually right where I'm at. LOL Morgan Bilbo, slightly over one year with very basic DCC