Review on Renogy Flexible Solar Panel 100 Watt 12 Volt Monocrystalline Semi-Flexible Bendable Mono Off-Grid Charger For Marine RV Cabin Van Car Uneven Surfaces by Tracy Mckeithen

Ordered 3 panels for my Sprinter Camper, as per Renogy installation instructions glued then to the roof of my van. Output was low to start but I live in MN so wrote it off to less Sun. Went to California for 2 months, output has dropped even more, 3 panels in parallel in bright clear sunshine are producing less than 5 amps. Bought two cheap Harbor Freight panels, layed them on top of the Renogy panels, the cheap panels are over 10 amps with just two of them, exactly what they are rated at. Talked to tech support, rather I tried but everytime the tech was supposed to answer they hung up, called back 5 times same thing every time. I then went to email, after a couple day wait for a response they asked me to do some tests and send some pictures and video. I did as asked. Another couple day wait,, Then wanted followup video of the lights on the controller. Another wait and they sent a group of photos showing me how to do the same tests I had already done, with examples that weren't even the same panels I have. I got the distinct feeling I was being run around in the hope that I would just go away. I've been an electronics tech for 50 years, had my own shop for 45. I will never buy another Renogy product and advise everyone else not to as well. It's my own fault for ignoring the negative reviews, I hope all of you are wiser !Update: Renogy has told me they would take the panels back, minus 10% plus I am responsible for shipping on thier defective product. I asked them how I am supposed to remove the panels THEY told me to glue on to my roof, according to Renogys installation instructions, without damaging the panels or my roof. They haven't responded yet.