I am a hobby programmer and spend most of my evenings coding. My monitor has a built-in backlight, but I've always found that just a bit too weak for my liking. Turning on the lamp in the room is too bright and produces glare, using a table lamp is directional and imbalanced. Using an LED strip on the underside of the table does not illuminate my desk at all, so it's not particularly useful.
Recently, I stumbled across monitor lights again, and for some reason impulse-bought one. A super simple ~45cm wide, dimmable straight one with warm white colour. Let me tell you this thing is incredible. It provides exactly enough light without producing glare. The light comes from the centre and my hands cast an unobtrusive shadow. I've only used it for a couple of hours at this point, but the difference is remarkable. My eyes feel way less strained.
For context I'm using a 32:9 UW monitor with 1800R curvature, so this doesn't cover more than ~40% of the screen, yet there is absolutely no visible glare at all! The monitor looks completely unaffected.
Do you use one as well? What's your experience with it?