Easy installation! I watched a couple of youtube videos and was able to install this on my 18' travel trailer with no prior experience. I did my fair share of research about how to properly wire up the battery, but otherwise my wife and I installed this in about 3.5 hours. It would have been less if we hadn't second guessed ourselves on a few tasks like mounting on the roof since we have an ultra light trailer.The charge controller really helped us out since we can now have an idea of how much remaining charge is in the battery, amps drawn while charging and it gives the voltage of the battery. In full sun our panel regularly will provide 5.5 - 6 amps...on cloudy days it's between 0.5 - 3 amps depending on the situation. When camping in full sun our battery is usually charged by the time I wake up in the morning. We have now had this for almost a year and a half and it has worked flawlessly. Highly recommended.Note: I did have to purchase some additional cable to route it to where the battery is located on our trailer, which was on the tongue. If you wired this up to your converter directly additional cable is probably not necessary