Really like this magnifier - maneuverable; good lens; adaptable. However, I was disappointed with its construction. First, the annular ceiling has moved away from the track. The curvature of the lens hood rubs against the internal LED, giving an uneven shadow. It is impossible to do a DIY repair without unscrewing the lamp head. Second, the support service did not help to solve this problem. I just wish they could check the quality before shipping.