The full review is available here
English review at BLF
German review at my website
Summary
Looking for a powerful flooder, with simple user interface and easy to find tail switch? Then give the Sofirn SC33 a try! With its boost driver it is able to achieve constant low to medium brightness for a long time and up to 5200 lm in turbo.
There is not much to complain about the SC33. It is a little large for a 21700 flashlight and the autolock should be off by default (but you can turn it off manually). Overall I am very satisfied with the SC33.
Just in case someone thought they had a deja-vu: I reposted this because my original post went missing when Feddit had to restore an old backup after a crash.