So difficult to install that the IKEA lights make you feel like you're building them by hand to look like Legos for 3-year-olds. There is no way to install it in an existing system without leaving a huge gap from the ceiling to the cover that "covers" the wires. With a cover height of 2 points and no ability to pull the excess cable outside, there is no way to make a beautiful installation. I would only recommend it maybe in a completely new apartment where you can directly connect it to the cables without clamps and, of course, have a 2.2-meter ladder to comfortably reach the ceiling and see what you're doing from the inside. At the same time, two lights were purchased from IKEA, which fit perfectly and had a way to adjust the excess cable outside so that you can pull as much as needed and cut the rest. It's a shame for the money and even more of a shame that there were two of them.