In my opinion a relevant problem is also that the trademark BE-ON-BIKE seems not to exist anymore and appears to have been replaced by NC-17.
Going to the online shop of NC-17 there is no access to any performances chart/efficiency except for a very general statement where they say “output 5V-1A”. No mention to "standard" or whatsoever "PLUS" version !!
The online page of the web site of BE-ON-BIKE seems not to be updated any more, last update is indeed June 2016. This might be due to the fact that BE-ON-BIKE at the origin was a start-up and now is something different.