We are very impressed with the North America Traffic light duty temporary traffic signals.  The user interface is intuitive so programming is simple and fast.  Because the controllers are built into each unit we don’t have to worry about losing or forgetting the controller. Additionally, all of the programming can be done from one unit rather than taking the controller to each unit for programming. Their lighter weight also makes them easy to maneuver in the field and the set up takes less than two minutes. The light duty units are by far the best and easiest signals we’ve used.