The only reason I didn't give 5 stars is that the height is not adjustable. When I am sitting in my chair knitting I can't get the light as close as I would like. Otherwise, its great!
The lights works very well and my wife is happy with it. She had to help in attaching it tomits base, but we got it done. It offers 2 different lighting mode at 4 different brightness levels in each mode (white vs. a subdued kind of yellow.)
I bought three of these lights a few years ago and for the most part they have been great. However, there are two weak points on this light. The USB port failed after about a year on one of the lights. The clamp that holds the tablet stand starts to crack and so the stand will wobble a bit and hold your tablet at a slight angle. This has been the case for all three lights.
Lights up my desk perfectly. Multiple brightness and color settings for use throughout the day. Included tray with USB plug is a huge bonus, and lets me have my mobile devices on hand at all times. Love it!
I bought this to use it as a lighted music stand for guitar practice. I put a sheet of cardboard large enough to hold my sheet music on it and it works very well! I can certainly recommend this lamp for that purpose.