The installation was relatively simple, guidance does not need one. It is based on a U-shaped elbow with two oblong holes. This small inaccuracies when drilling can still be corrected. The transformer is connected via enclosed terminal strips, the lamp then hooked into the top corner and bolted. You manage alone. The rings can each rotate by just under 360 °. They can be tilted forwards and backwards. Because of the arrangement provide as different ways to play with the appearance. I did so by inclined that meet all four rings inside, and thus radiate their light in all four directions. (Actually, of course, but I mention it anyway:.! These are not spots So you should not expect a directional cone of light)
The lamp gives a pleasant and relatively bright light, it does not affect cold. In the single as well as in the off state can the individual LEDs behind the wheels not matter. Only shortly after being switched off when the afterglow LEDs, one realizes the arrangement.
A star deduction I had to this time because in one of the rings, the frosted glass had fallen out. It's all happening in the package and I could before installation using a tiny amount of UHU glue again. Hope now that later will not resolve more discs because after 2,50m freefall may make you probably will not stick again.
Conclusion: Overall, very good again very chic. Small flaw, because you can repair it yourself.