40 watts is a pretty powerful for a panel that can also fold. The power level initially attracted me to this panel. One feature that is relatively rare on folding panels is having waterproof ports. Most folks that want or need a folding panel will also probably expose it to the elements at some point. Having waterproof ports just makes so much sense in my book, yet that is a hard feature to find. When compared to some of my other panels that are also folding, this one seems to be just as well made and just as sturdy, yet the ports have seals. I don't see the point in buying a non-waterproof panel when you can get a well made one like this. Read more