$6 IKEA Kapplake lights make excellent desk backlighting
I don't like RGB.
The IKEA Kapplake accent light works really well as a backlight.
Compared with the picture above, it looks a bit softer and warmer in person. The entire light is a toggle button, so I’ve put them toward the top and right side so they’re easy to reach.
(Yes, that is a UHK)
Behind the laptop stand
Behind the monitor
Box does not include a USB A power source, but surely you have a dozen of those by now.