Woodland Scenics O Scale Just Plug Traffic Lights are ready to place right out of the package and come hand-painted and authentically weathered. The Traffic Lights are pre-wired and made for use with the Just Plug Lighting System. Whether at rural intersections or on busy city streets, they add interest to any scene. Suspended Flashing Lights flash on all four sides and the package includes two flashing yellow signals with poles, enough for two intersections.