2PCS 100W 12V Flexible Solar Panel 9BB Monocrystalline Cell 12 Volt Semi-Flexible for Marine RV Trailer Boat Cabin Van Car Uneven Surfaces 12V 24V Battery Charge

I bought the 2x100w semi-flexible 9bb panels. They were delivered fast. I had never heard of Topuvine, but the panels seem pretty good, and it seems the company in China is a player in the market of solar, so I took a chance because of price. Most of the reviews were Vine members, and not technical enough except one review that was spot on. The packaging was adequate, and panels were not damaged. I tested them quickly in evening sun with them in series, and saw about 165w from them. Mounted them on camper using sikaflex and corrugated pvc panel cut into 3/4” strips spaced ~5” apart. I liked the semi flexible feature, not too bendy, not too stiff, and especially liked the length of cable provided with the MC4 connectors. The best part. Just got back from camping. See attached screenshot, I got in traffic, had good midday sun, 80f temps, and the 2x100w panels in series where providing 208w at 15a out of the MPPT controller. My shunt shows I saw 210max!!! I was rolling between clouds too! So now the question is longevity. Will the coating deteriorate fast, develop hot spots etc, or will the panels just gradually lose their performance over the years. I’ll be back to update next year.

The product is awesome, the best flex panel that I've bought. In spring sun, I got 224W max out of a 200W pair in series. In summer conditions I get ~180W. Not deformed even after almost a year in the sun(ambient can get to 35C, in a long 4.5 months blazing hot sun), very thin but sturdy. I recommend.

Getting good production even with partial shading at 50deg north latitude in September. It has tiny transparent domes like little bumps all over the sun facing side of the panel and they seem to gather scattered light from all directions and improve with shading. At least they seem to compared to other panels I've been trying out side by side with this one in the same conditions.

se ajusta a lo que dice la publicidad, recien los instale, no se como sera su desempeño luego de varios años

I had 4 of these that i purchased a year ago and they’ve been serving me well. I just bought 2 more and they aren’t the same. They have only 9 columns of segments, compared to 11 in the first lot i bought. The segments are exactly the same size so these new panels are significantly shorter. Doing the math, these new panels have about 80% of the surface area of the older ones, yet everything else seems to be exactly the same design - so how can these also be 100W each? I’d return them but as a full-time vanlifer i had to get these delivered during a hotel stay, as they’re too big for Amazon locker, and it’s expensive/difficult to arrange delivery of new panels. I will update this if the power output seems to be comparable. UPDATE: yeah these new panels are utter crap. Installed 4 weeks ago and they are already starting to delaminate. The old ones which have been on for over a year are not showing any signs of delamination - last pic is the new panels where you can see bubbles. 2nd UPDATE: The new version panels are a different voltage to the original. The listing still states the original max power of 19.1V. These are NOT 19.1V anymore - they are now 15.9V - see product labels in pics. They are not compatible for connecting in parallel with the older model. They may also not be very effective at charging, depending on the charge controller you use (my controller requires at least 5V difference between battery voltage and input voltage in order to charge, which just won’t happen with these new panels if you connect in parallel). Wasted hundreds of dollars on these panels, troubleshooting, and put unnecessary holes in my vehicle roof.

I like the flexible aspect, and the bubble texture seems to help some with light gathering from off angles. They're easy to hook up as they have the typical solar claw connectors, and some grommets in the corners to bungee or rope tie them to a roof on a camper or the like for short term use. The output is a bit underwhelming; on a 100+ degree cloudless day, noon to 1, on a flat vehicle roof, at 5k feet elevation, pointed straight at the sun, 75W each was all I could get out of them. They are more effective upside down or shaded than I expected, I do have to give credit where due on that aspect, they're still able to put out 10-20W in the shade, which is nice, but I was expecting a bit better than 75% of rated output in sun so bright I'd really rather not be tinkering with solar panels in it. I know many things are rated pretty optimistically, but I'm not sure how to go about getting more direct sunlight onto these panels than what I described.

It's very thin flexible lightweight

These are a bit stiffer than other flexible panels I've seen but that's fine for my application which doesn't require bending to fit a surface. I've got them hooked up in series feeding my RV. The charge monitor is showing 13v @ 10 - 10.5 amps when in full sun. The power drops off considerably with any clouds or shading. All as expected for a solar panel and it matches the performance of my rigid HQST 100 watt solar panels. The surfaces of this seem pretty tough and have a texture that looks like coarse woven fabric. I guess that helps to shed dirt? Pretty happy with these so far. I'll update as necessary. I dinged one star for the tiny grommets used. The only thing that fits through them is a zip tie.