I've finally finished my in-depth review + comparison on the Wuben X1.
Full review: https://budgetlightforum.com/t/wuben-x1-review-comparison-a-pocketable-wall-of-light/219035
In short, it's a 2x21700 flooder with great performance, active cooling and an unusual rectangular shape. Sadly, there are also a few small caveats that you have to keep in mind before purchasing.
Read on and tell me what think!
@Grzybek Thanks for the update. I just read it and I must admit that I'm intrigued, especially as my use case would be belt carry using the holster. Appreciate the review.