Hi stan2004 I have 3 different sets of these crossing signals on different parts of my railroad. Right now I'm using a transformer to power them. They are all wired separately and they are activated by using Z-Stuff DZ-1070 & DZ-1075 sensors. I can purchase 3 of the Buck Converters of I need to. I wired like MTH advised from their directions on the box. Thanks for your help.
Gary