Very good construction, it was recently purchased and installed a few days ago. So far, I have seen around 320w in combination with the Ecoflow Delta, which is great. The panel weighs around 17kg and the base holds it securely. I preferred to make my own permanent base that holds it well and was able to install it on a pergola. Pay attention to the cables they include. Check the manual for what should be included in the package because they didn't include the Delta connection cable for me.

Update 06/03/2023: The panel is excellent, with good sunlight I see close to its nominal performance. Now it charges my Delta 2 because the Delta 1300 I purchased broke after less than 2 months of use... The Delta 2 is a much better purchase, but I will come back with a review another time.