The assembly can be done a little expensive but with 1 person.
Why Expensive?
So that the lamp does not depend as wrong in the product video, the 3 steel cables must be pushed into the ceiling mount.
Previously, this should reduce to the appropriate length.
The ceiling mount is a metal bracket screwed (like almost every lamp that you can buy now). The metal bracket is screwed with 2 screws in the ceiling.
Now the best place a spirit level on the lamp top and the steel cables so long follow up on something to the lamp is just.
The hanging lamp has four E27 sockets, so either normal bulbs or LED lamps can be used.
The lamps are not visible from the outside, so do not pay attention to their shape from appearance'll need.
(Lamps are not included)