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.

I put 4 of these on my car, so far the max I got from 4 Panels is 389 watts. Which is 97% effectiveness. They have exceeded my expectations greatly.

Great so far…. Got two for the R.V. Set up with a 20 dollar charge controller into two 6 volt batteries ran in series keeps the thin charged.

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.

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.

great price, and produced up to 80watts each when laid in the driveway

Generates near the same as the framed flat panels these replace on top of my camper mini-van.

These are great, inexpensive panels. However, set your expectations accordingly. In full clear skys, they produce 85-90w. I have seen peaks to 100w with bright white clouds as they pass the sun but in clear sky conditions, they don't produce rated. Update 19 July 2024. The panels have really degraded in output. They are now only producing 65-67watts each in full sun. I have them in series to my Victron Charge Controller. Update 10 October 2025. These panels have degraded further with one producing only 48watts under clear sky at the optimum angle. The other one produces 48w. Downgraded to 2 stars as you are actually buying, at best, a 50 w. panel. See new video I have attached.

Soddisfatto, peccato per la giornata uggiosa. Amplierò l’impianto 💪🏼

Buen producto, es flexible como tipo lamina de PVC y si da la potencia indicada, tiene argollas en las orillas para hacer la sujeción.

A voir dans la durée,le matérielle ne me parrais pas de qualité exceptionnel mais a voir sous les UV

Vendu comme des panneaux 100 watts mais ne produisent que 50 watts en crète ! Esseyé sur un autre panneau et 2 autres marques, : même probleme : ce ne sont pas des 100w mais des 50w, merci d'etre plus honete sur la description. A part ça ils sont bien.

Slecht product. 100W paneel in volle zon = effectief 30W. Schande dat ze zoiets verkopen.