As the Lamp Base is really Bulky - and would be expensive to ship mounted - it arrives in Parts..
The base is mounted with the largest part of the lamp base on top. Pls note that the lamp holders should be faced towards the floor, on both parts of the lamp base. If the lamp holders are faced upwards it will not be possible to connect the wiring (jump to picture #3 and make sure the wiring is facing each other and can be connected, marked with a red circle).
Mount two nuts on top of the upper part of the lamp base /on top of each of the pipes.
Fasten the three pipes with a nut under each of them. Finnish with the threaded pipes, one nut and fasten with two nuts under the lamp base.