The Photonera is a portable solar generator which, despite its relatively compact dimensions, is suitable for charging notebooks. When folded up, the system is not much bigger than a smartphone.https://www.notebookcheck.net/Photonera-Portable-foldable-powerbank-with-solar-panel-that-can-even-charge-notebooks.932671.0.html
A few things:
1. the best known panels output 22W MAX, so anything claiming 25W is just a lie
2. the weight 'stated' (560) is also a lie, given that an average 10,000 mAh powerbank already weights about 350g and a THREE-panel LIGHTWEIGHT solar panel weights another 350 g.
A sucker is born every day.