Looking for the perfect light ... - and the trick with the magnets

Looking for the perfect light, I came across this lamp. First of all: I have achieved my goal.
I need a lot of light in my study 15m² - a normal 100 watt light bulb is the lower limit, comparable 150 watt would be what I was looking for. After several failed attempts with cheap and expensive Led lights (too dark to direction-dependent, the same defect, to white to yellow) I decided a exotic to take a chance.
The lamp is about 1 cm thin and looks visually from modern and high quality. Designed she is to hang on the ceiling. It has a separate transformer which transforms from 230V to 12V.

The Light:
The brightness of the lamp is somewhere around 150-180 watts at comparable incandescent bulbs. Power consumption I measured, it is 34 watts. The light is amazing! Due to the large - and completely uniform light area there are no harsh shadows in the room. The color is the best thing I have seen in LED previously - no color cast and no sterile Led "warm white". Just perfect and every evening a pleasure. What is a little bit of getting used to, is that the other bedroom ceiling remains relatively dark - that is the mounting position, because I am but quickly got used. That irritates me even when testing on the ground - I had the lamp once briefly connected to the socket and thereby perceived as too dark.

Assembly:
The slopes at 4 steel cables came to me out of the question (what does because of that, and where do I indulge the transformer). I Describe the time now relatively accurately, because it was the installation of the most critical point in the lamp for me.
For recessions with a similar product, I found the solution to my problem mounting: the top plate of the luminaire is ferromagnetic. I have 3 small wooden strips (each 40 cm long) connected: | - | the middle bar located on the two outer on. The two outer I now equipped with thin Eisenbschlägen from the hardware store. Now even on Amazon "x 10 neodymium magnet discs, 15 x 3 mm" ordered (12 would have been better, but it holds) and simply placed on the fittings. Finally, the lamp clicked on the magnets. The wooden strips I have chosen with 2.3 cm thickness so that the entire construction about 5 cm builds (2x wood + iron plates + magnet) - therefore plenty of room for the transformer is available. From the side, the attachment is not visible, because the room is not very large and the lamp hides the construction.