Well, there are a couple of observations that might come in useful to some one trying to make a purchase decision on this lamp.
The height quoted for this product is a bit of a misnomer. Technically speaking the higher end figure quoted for the height is correct, however, to achieve that height, you'd have to completely straighten out the curly part (the top part of the lamp), this will make it so that the lamp will be aiming sideways across the room instead of downward! Now I don't know about you but I don't want a bright lamp hitting me right in the eyes every time I walk by. I want a lamp that's going to shine down on me, or on whatever I'm working on or aiming at, and that's the crux you see, because by bending it over into a natural downward facing position the lamp is very short. I had to mount it on top of a tall UPS (YMMV) for it to comfortably shine down on my desk, otherwise I would have probably returned it, again, YMMV.
Secondly as some reviewers have stated in regards to the brightness, it is not so much that it is not bright, it's just that the light is so white that any brighter for a lamp and it might be uncomfortable.
Thirdly, the lamp covers what would be the equivalent of a desk area, and not much more. This isn't a corner room lamp.
Last but not least, I was amazed by how short the lamp really is, when I unboxed it and assembled it, for a minute I thought that a second extension pole was missing or lost, I quickly realized that there was no other extension pole.
One other thing: The FAQ page that comes with it specifically states that this lamp does not produce the amount of lumens necessary for this lamp to qualify for SAD therapy. That being said, in New England during the winter our days are short, and this does help out tremendously.
It makes me think that days are longer, at least while I'm sitting at my desk.
All in all, I am happy with the light and will be keeping it.
I'm giving it three stars because I thought it was going to float over my head, (Too Short!)