Thank you for the very fast delivery, This lamp is great, not having a lot of light in my room and being a student I needed a lamp to work on my desk, so I opted for the latter, the flash very well , a little too well, it really looks like daylight (very white), and it's just perfect for working on his desk, it is even better than the libraries. height is réglabe, it rises high enough / foldable, saw eye I would say within 70 cm max height starting from the pince.Je did not have any particular problem with the joints, you just good and screwed tight and y 'will not worry, conclusion, I loved and I recommend! !!