The overall effect is very good. A small lamp that blends in with the ceiling's background and is only a few centimeters high is a fantastic solution. Utilization has only lasted a week, so how it will fare in the future remains to be seen. Different advantages include: - Three lighting options - Very even lighting that prevents eye fatigue. quite practical considering that full power is not always necessary. - In general, even 50% is sufficient for a hall size 18 m2. Cons of it: It is highly recommended to complete installation together. I have no idea how to handle it on my own.