Updated Information: After writing the original review below (which was a three-star review) I was promptly contacted by ACOPOWER customer service and offered a replacement product as an apology for the quality issues with the non-factory wiring job with the controller. I accept ACOPOWER's explanation that the unit I received had some modifications performed in their LA office and not in their main China factory. It should not be difficult for them to improve the quality of the wire connections to the controller if done in a factory with the right tools and supplies. It should be a simple issue. As I note below, I really do like all other aspects of this solar panel, and I like the LCD controller. I have changed my review to 5-stars due to the excellent customer service and an obvious commitment by the company to maintain a quality reputation. I have not updated the photos. I may add new photos in the future the next time I use the panels. Original Review: If you cannot repair wire splices or crimp connectors at the end of wires, and properly insulate them, then you may very well be returning this unit due to faulty wiring at the controller. Other than the wiring, I really like this unit, particularly the LCD controller. The frame is very solid. I liked the use of the Anderson connection at the end of the cable for the battery (also comes with an Anderson x aligator clips adapter). The case is nice (keep the box for extra storage protection). I like the controller, which allows you can toggle the display to show the output Amps, Amp-hours, and battery voltage. This is key to troubleshoot and evaluate performance. Although, I have not seen more than 80 Watts output and I used it in full sun in mid day. Hopefully it can ultimately go higher. Other than my experience with the terrible wiring end connections, I recommend this unit. I recommend to purchase the Go Power 7-pin x Anderson adapter to allow you to connect to solar panel to the battery through the main electrical pig-tail of the RV--more convenient than opening the battery boxes. Also, I recommend the Go Power Anderson x Anderson 10 gauge extension cable. These two items are excellent quality. Upon receiving the ACOPOWER foldable 100W solar panel with 20A LCD controller, I set it up and hooked it to my RV to test in my driveway at home, in June. After operating for 24 hours I noticed the red and black wires connected at the controller, (leading towards battery), were simply falling out of the crimped terminal connector and the black electrical tape loosely wrapped around these crimped connections was melting and smoking. It was hot out, 95 degrees F, but this was not the cause of the problem. Crimped connections don't fail due to heat, unless they are held in only with electrical tape rather than properly crimped. They may have tried to crimp a connector one size too large? Because I found all other aspects of the solar panel to be quite good, I decided to fix the wiring myself and avoid the hassle of a return. I cleaned up the wire ends, removed the electrical tape, crimped on quality connectors, and completed the job with some solid heat shrink tubes. Wire ends better than new. I have attached some photos of the best two wire ends that did NOT fail, before and after I removed the electrical tape (heat shrink tubing would normally be used in a factory installation to insulate and protect from strain, not electrical tape). I cut the ends off of these wires and started over with new fork connections.