Today I received this powerbank (yellow). It was fast delivered to The Netherlands in only 13 days ! With 5000 mAh it is strong enough for charging my phone.
Looks nice but with only 200 mAh solar charging, the battery should take 20-25 hours to charge full in the sunlight. I think that is way too long.
Just start using it with a fully charged battery and keep it in the sun all of the time.