EcoFlow 400W Weatherproof Solar Panel

I just bought this solar panel as part of the launch bundle for the Ecoflow Delta Pro 3. I want to like it. I set it up late on the day it arrived to test the whole system. I just propped the panel up against some chairs in my back yard, facing the sun. We had partly cloudy skies, with clouds drifting in front of the sun about 60% of the time, so it was not a great test. When the sun was full, I was regularly seeing 375 watts indicated on the DP3. One time I saw 401 watts. I'm doing more testing today and hoping for a higher percentage of complete sun. However, today, planning on leaving the panel up all day, I decided to use the included case that doubles as a stand. Apparently, Ecoflow has better electrical engineers than design engineers. The stand is junk. It is hard to set up, and only supports the center of the panel, about the inner half of each of the inner two panels to be exact. Also, with the sun at its highest, I can't see a way to not have the stand shade the very top of the two center panels. As the sun moves west, that should resolve. I'll be building a second portable array myself to see if I can do better, which I suspect I can. It may not be as compact as theirs, but it will offer more support and be easier to set up. All sorts of videos how to do that on YouTube. I may build another stand for the Ecoflow panel as well and save the case stand for the rare occasion I will use it portably, knowing what I'm in for with setup. Again on the good side, the charge on the DP3 is going up faster today than yesterday with better sun conditions. Bottom line, if you want a panel that is more expensive than others, and difficult to set up with a terrible stand, you will be rewarded with a panel that is able to deliver the rated capacity, or very near to it. Personally, I'll use this one, but will not buy another. **UPDATE** In subsequent testing, the sun remained intermittent. However, for a couple of minutes, I saw power readings between 420 and 430 watts on the Delta Pro 3. The panel actually exceeded it's rating. Still a shame about the stand. The hotter the panel got, the more it sagged, meaning that not all of the panels would point directly at the sun as I moved it.