I bought a couple of those a few years ago. Not a great experience. First of all, it took over a year to get them, because after I ordered them they informed me that they were having issues getting them approved by government safety agencies. Then once I did get them they were unreliable (one arrived in non-working condition and had to be replaced) and they didn't put out enough power at the time to charge my iPad. Eventually they both just stopped working.
This time I bought a set of five of these:
https://www.amazon.com/gp/product/B00ZQ3MRMU/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
They work great!
I put the Guidelight in my upstairs hall, master bathroom and a couple of other places where you might want to walk around at night without turning on lights. Very handy, indeed.