Progeny 300W Power Station (Open Box)

It arrived fully charged, which was a nice surprise. Most features work as expected, with one notable exception. Some of the buttons require several attempts. I had to press the light button several times before it would come on....then it took ever more attempts to turn it off. I had similar issues with the USB button. Unfortunately, I have an immediate need....so returning it isn't an option just yet. I will just have to deal with the quality issues for now. Probably good to go with another brand. *****UPDATE****** I was looking to add solar charging and there's no helpful information on this. Looks like some folks state the max input is 45 watts. The PROGENY panels are 120 watts, but are out of stock. One commenter stated that panels come with a controller, so you should be good. What does this mean? First, the controller is needed to charger the 12V batteries in your vehicle, not not this device. What we really want to know is which panels should we buy. There's no point in buying a 200 watt panel system if this thing only charges at 45 watts. If there's some kind of conversion at play, like you only get 50% of the wattage at the device, then just tell us the rules. I don't want to spend $200 on 200 watt panels if 80 watts would max out the input anyway. And why try to sell us a 120 watt system if it's much more than can ever be used? Some stated solar charging didn't work at all for them. It appears the only direction from the seller is to purchase their panels....which are out of stock. It looks like you can get all types of technical details when it comes to use their panels to charge a Jackery system, but almost no information regarding their own device. PLEASE PROVIDE CLEAR GUIDANCE REGARDING SOLAR CHARGING. ******UPDATE******* The AC power stopped working. As soon as I turn it on, the unit powers off. It's now useless for me.