More powerful than one would assume.
Crutchfield Customer Review (What's this?)
I bought this on 6/30/16 from Crutchfield, I also purchased a Goal Zero Sherpa 50. Did some pretty good research before I purchased this panel, and there are panels that claim to be more efficient, none of the competitors had a 12v output like that Nomad 13. The panel by itself has no problem charging my iPad Pro, at 4.86 Volts. Outputting 2.63 Watts @ .5 Amps which would take forever to charge my iPad Pro, but has no problem charging my iPhone 6 and other devices. I plan on taking this on a long trip for a week, so I did a stress test on it. and left it on top of my Kodiak tent during a extremely hot weather streak, ranging from 95-105. The panel at some points was very hot to the touch, but didn't affect the charging of the Sherpa 50 I had it connected to. on bright sunny days the panel had no problem charging the Sherpa 50 in around 6 hours.
Pros: Its smaller than you might think, its almost exactly the same size as a normal magazine that you might receive in the mail, open, closed respectively.
Cons: Not a con to the product itself, but I do wish it came with a 12v extension cable and possibly even a USB extension cable. I don't know too many people who are comfortable leaving their electronics in the sun.