The lamp does what the advertising proclaimed from a technical perspective. The light is very pleasant and sufficient light. The different modes which also individually adjustable in brightness are the light can be set for every need. The USB port is handy. What bothers me is the processing of the lamp for which we have paid at least 60. The recording of the lamp arm to the unit base is a joke. The threaded connection between the two parts can not be determined. The game between the two is very large. As we move the lamp is not big and we have found nothing, we will retain the lamp. The real object to shine fulfills this lamp.