Review on 🌞 LENSUN 50W 12V ETFE Black Flexible Solar Panel with High Efficiency PERC 9BB Mono Solar Cells for Campers, RVs, Boats, Camping, and Tents by Rich Schobinger

I have four of these installed on my boat connected in parallel to a Renogy MPPT charge controller. In full midday sun I get about 60% of the nominal power with three of them. The fourth panel failed and was removed from the circuit. It has some layering on the top, so I tried turning it off and the overall performance didn't change. If I turn off any of the other three, the power output drops about 60 watts. I like that I can step on it barefoot if necessary while moving on the boat roof. They were very easy to install as I taped them on with VHB tape. Update: Thanks to Lensun for customer support. They answer emails and send me a broken replacement panel. Apparently, the 60 percent performance problem is widespread in the industry.