Testing my new purchase. Sun is starting to come out some. It was charging even with a goos bit of cloud cover though. 30 watts if you use both ports. Folds down to 8.5x11, only weighs a couple pounds. Comes with two carabiners so you can run it down the back of your pack and use it while you are on the move. I’ll give it a more in depth testing in a couple weeks when I go camping for a week. Just bought it to charge my portable charger so I can charge my phone and headlamp. 50 bucks on primeday.