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.