These pre-painted cast metal traffic lights are non working and therefore only a representation, if you want working lights you need to look elsewhere, but these are fine for my needs and excellent for both model railways and diorama building.
The painting is very well done and they are in true 4mm scale as well. I also have modern pedestrian crossing traffic lights from the same supplier and these include the button box on the post and the red/green man lights too.
Overall, P&D Marsh have made an excellent product here. My only recommendation to them is maybe they could produce a pack with 4 traffic lights in it to at least make a proper junction with, and also we see alot of double headed traffic lights for separate lanes or ones with just a turn left or right arrow box which would be a welcome addition to the range.