Renogy Solar Panels 640 Watts 12V/24V Rigid Solar Panel Monocrystalline 2PCS 320W On/Off Grid Application Over 500 Watt Solar Panel High Efficiency Durable for Homes Roof RV Boat Camping Black

High quality solar panels that perform well. By purchasing a package of two panels, they are a better value. I have used different Renogy solar panels for the past ten years and have found them reliable and easy to mount and install on my RV's without adding too much weight. I will be using the new 320 watt solar panels on my off-site storage building.

I originally tried to save money and buy a different brands and it turned into a nightmare. Inconsistent output and panel failures kept me quite busy with returns and installing new panels just to have them die within or just after the return period. After returning the other panels and buying 8 of these, I have to say I am totally amazed by the quality all around.The box, how the panels were packed, how easy it was to remove the panels from the box, technical specifications with temperature coefficients on the panels itself. Each panel has an individual serial number for the warranty. This is something you won't find on a lot of 'cheaper' panels.By paying the premium which in hindsight was well worth it, I received a 10 year warranty on the panel itself which is guaranteed to not have hot spots as it ages. The panel also comes with a guaranteed power output graph over the years. I have the specifications to know if the panel is failing or working as it should. Everything I've seen so far tells me they stand behind their products.From Testing to testing after installing the ground mount solar rack, all panels are consistent, arrived in pristine condition and most of all, performs as the manufacture says they would. The frame is made of a thicker material and the quality of everything is top notch compared to the other panels I've purchased and reviewed. Since installing these panels, I discovered my solar irradiance monitor is showing low and needs recalibration.There are many panels that are less and seem very attractive. After everything I've been through, I will buy Renogy from now on.I highly recommend this brand and panel for anyone who is doing a DIY solar project. this outperforms even the best of the 'cheaper' panels purchased before now.

Works good for me. Easy install.

Works good, paired it up with an other 200W and on a sort of cloudy day they charge my C1000 before dark, but on a sunny day they keep me charged up even with the fridg plugged in.

Knocked off a star for the connectors. The panel worked great for around 3 months of use mounted on top of a vehicle. Then the wire for one connector came entirely out of the metal crimp inside, and the other was so loose that even after the other connector was fixed, the solar panel would work only very intermittently so that connector had to be fixed too. One connector was easy to fix and unscrewed + came apart into manageable pieces, but the other was tougher to fix as it did not come apart nicely. I would still buy it again, but I would baby the connectors and try to plug/unplug things from them very frequently. Other than the connectors, I haven't really had any issues with the panel.

The panel was used on a trip across country camping to many National parks to charge 12 v li battery.Worked well and lasted being in back of truck and setup at many campsites

The media could not be loaded. None of the solar panel boxes came sealed so there’s no way to know whether they are actually brand new. The packaging was quite good on them, so I was very surprised to see that most of the corners of the solar panel connectors are busted and one of the panels has a bent frame. The styrofoam corner protectors are not damaged, so it seems like the damage took place before the panels were put into the protective sleeves. This tells me they are selling damaged/B grade panels as though they are A grade. Even having bought them at a discount during Black Friday, this is not what was advertised, and not worth the price. This seems like a shady practice even though the panels appear to be good quality. If Renogy fixes this issue for me, I will change my review rating.

These are big heavy and made out of non recycling products, I love the whole idea of solar. And after studying all the information I can get my dirty little paws on I've come to the conclusion at this point in time our history solar energy is a waste of time money and the Aggravation caused by worry and experimentation, I can't review these yet because I'm back on the road, I got not time for foolish things lol... I have been successful in this solar thang and probably will continue with it,But not going full throttle until it actually gets a lot cheaper, why because there playing with us,Solar energy has been around for years like a hundred now no really, there's equipment they won't sell us that does really well but we can't have it, the available equipment is very expensive and what is only available to the science community would blow your mind.Sanyo corporation used to make panels in the 90s only 200watts that put out around 63v at 27amps can you buy anything like this today oh no they want to sell us equipment for mega dollars that barely lights up a 15watt led,No solar today is not worth dumping thousands of dollars into,To date I've purchased 8 of the 320watt Renogy panels. There big there heavy and they work well. These are base work horse units that produce around 280watt average as no solar panel puts out advertised wattage from a perfect world lol...