First off, my initial order was for two units. When I received my shipment, only one adapter was there. I contacted Ceptics and I was immediately shipped a second one.
Now I am in Africa and trying to use them. What I discovered is that I have two different models. One works extremely well, the other does not. Since I am out of the country and would not know if these would work until I got here, I am somewhat disappointed in this whole process. This is exactly why I ordered two - as a prevention for something going awry. I will deal with this situation upon my return.