Who something techn. versed, the growing-instructions not needed.
However well forget the people who design this ceiling light that one must come to the terminals with your fingers to secure the cable.
It is possible to fix the lamp alone, but quite a challenge.
The end pieces are not processed so great, but when the lamp is first on the ceiling that looks eh no longer.
Unfortunately 1 Lamp was broken (by 6).
But all in all a visually beautiful lighting.