The link is to my review of the AC30. I bought the blue and green units, and my son got me the yellow one for a Christmas present. They are entry-level units without some features of the larger AC50s, but still good little units to take camping or use for smaller items in a power outage, and very portable. I wanted these for the glamping setup I have in the woods on my property, and for power outages. Others have done very detailed (and in some cases extremely detailed, lol) reviews, so I gave just a general review. In my view, the two must-have units are the AC50s and the AC200/P, but these are still useful.