UL listed ect. Means they paid someone to test their work..
Some listings are self tested.
A lot of cheap power supplies have few certifications.
Problem is it is sort of cryptic and sometimes means less than you think.
Some are for rfi interference (not sure this has one though I certainly am not familiar with all labels), some for safety ect.
It is very complicated afaict.
Wondering how to check the certification of your PSU? Our guide to power supply certification will cover everything you need to know about the various PSU...
www.bravoelectro.com
The TUV Rhineland one is rare to me.
Not sure it isn't just psychologically satisfying.
The VI defines the no load power consumption level and efficiency
0.21 (or less) no load watts and >/= 88%
If legit (and no reason to believe its counterfeit or faked) the ps certainly "appears" better than the average Chinese stuff.
Still really doesn't have anything to do with being err "mismatched" or not but should lower the chances of it bursting into flames..