Fast delivery as always but now for the solar panel. If it works even without interrupting it does a good value, unlike the i technology with the competition the charging begins much later, early morning sun and clouds lead equal to crashes and shutdown ... you can still live with it, however, has it not managed a Lumia 535 + USB Power Bank simultaneously to load at 25 ° outside temperature in the shade and the panel directly in Respectively Outdoor aligned in sunlight without clouds to the south. The processing and loading only one port is very good, but the manufacturer should perhaps think about i technology, which operates at a different panel smoothly. Is not evaluate negative what I write as an experience, quite possible that, I caught a Monday device. Very positive the size in aufgefaltenem state is to be noted.