The lamp does exactly what the product description says. On-off switch. Stepless dimming when you keep your finger on the corresponding contact surface. Color temperature can be selected and automatic brightness adjustment is also available. However, it is a bit sluggish and is therefore less suitable for games or films or other quickly changing screen content. The switches are easy to reach and feel. The installation is easy, the holder is valuable and quite massive. Absolutely no cheap junk as otherwise often seen. Everything works great on my 34" monitor. I don't know what it's like with a curved monitor. I could imagine that the screen would then be illuminated too much, which is not wanted. The lamp dazzled me a bit at the beginning "But since my screen is relatively large or high, the lamp is also mounted higher than usual. Normally, people say that an ergonomic sitting position is one in which the upper screen edge of the monitor is at eye level. That's because of the Monitor size of course not the case. But a bit of tape and a bit of black cardboard solved the problem for me. So here you really don't have to spend 150 euros or more for the branded product. This is the alternative suitable for everyday use.