The contractor should Place the Blue Tube have those wire inside the pole, so, it can be sound proofed, that means someone cannot cut the wire, he leaves the wire outside when it supposed to be inside.
3mins into this video, all i can say is "money miss road" Just imagine all houses have this lighting point in other countries that have 24/7 electricity, do you think it will be possible? My God, look at how many lighting on the fence.