I have two of the knock off Ott lights that are floor lamps, one is Verolux and I think the other is Happy Eyes. I also have a small portable Ott light.
I don't think the Ott are any better than the knock offs.
The reason I have two floor lamps is I purchased one for my Dad. The lampss give off wonderful light and they do not get hot at all to the touch. I was always afraid of him burning himself on the bulf in a regular lamp. When he passed away I rreclaimed the lamp and have one by my chain and one by my sewing machine.
Barb