My desk surface was always too dark, a desk lamp would have taken up unnecessary space and spread the light unevenly across the work surface. This ingenious monitor light is completely different: the work area is generously illuminated despite the seemingly narrow tube length, the light is more than 1 meter wide. The light is bright enough, no, it's fair to say it's very bright. Assembly is easy - if you read the instructions. Incidentally, the instructions are good and elaborately made, kudos to the manufacturer (apart from the fact that a few French sentences run through the German text). The light with the sensor controls is very well made. There is one flaw: the long, high-quality USB cable that comes with it has a plug on the lamp side that is too long, so the tube cannot be turned far enough away from the monitor. As a result, the work surface is not illuminated as well as it would be possible; instead, too much light falls on the screen. I solved this small design flaw with a new USB-C cable with an angled plug, now everything fits. But that has nothing to do with the fact that I operate the light on the curved monitor from Dell, which has no negative impact despite the manufacturer's warning - so it also works with curved screens. Overall: Highly recommended, inexpensive and useful.