Very powerful and clean light. The sensor works excellently and rarely needs me to adjust the light intensity. It makes working at the office in the evening much more comfortable.

Also, the fact that it runs on USB power (if you have a hub or port on the monitor) keeps the entire desk clean.

I have it on a Curved Monitor LG (34UC99-W). The edges illuminate the screen a little, but this depends on how high you have the monitor and how parallel you have placed the bar on the desk. It doesn't bother at all.