my entire home is run on solar. we use two computers, water pump, lights, wifi, and misc gadgets. our fridge is non-electric. nothing in our home uses more than the USB 5v 2amp except the wifi which is 12vdc 1 amp and the water pump which is 12vdc 3amp only when on, and the computers which are 19vdc 1amp. we can run it all at once all day.