This Lipower 100W solar panel set unfolds to 4 panels with wide seams between them. 3 of the 4 panels have legs to support the panel. Compared to a Jackery-like 100W 2 panel set, I found the Lipower took more time to get set up and the legs did not offer much in the range of tilt. Adjusting every hour to catch the sun was not as easy with the Lipower; the panels tended to twist in different directions and the legs would give way. The Lipower shifted or collapsed in lighter winds. All that may explain why I got faster charging times with the 2 panel 100W set. An advantage to the Lipower is that blocking one or more panels did not stop all the power output.
Both sets have the average, mediocre USB output. In less time than it took to charge my phone with the solar panels, I could charge my phone with a battery bank and then recharge the battery bank with the solar panels. The controller gets warm so don't zip closed the pocket the controller is in.
The Lipower seemed to be better made overall and with better protection of the surface of the solar panels. It folds up to the size of a briefcase, while the 2 panel was much taller and not much thinner.
It may not matter to most people, but I wish the Lipower came with a larger selection of power connection adaptors. I've found those useful a few times as I've been asked to try my solar panels with other devices than my usual battery bank and was glad another set had the adaptors needed. No set so far has come with a Zamp adaptor for plugging the solar panel kit into the external solar port on my RV.
My initial impression was this Lipower solar panel set was 5 star. After using it for awhile, the very limited tilt and clumsy adjustment got it down to 4 stars (I realized I was reaching for the 2 panel set over the Lipower and had to think about why). If I was getting a solar panel set that would be packed in the trunk of a car, I'd go with the Lipower.
