26650 cell in 0.99 inch tube - how this is possible?
Hi Kirill, I just checked with Wurkkos. It's a typo that will be corrected a.s.a.p.. I was told the correct diameter is 27mm.
BTW: I'm about to optimize and translate the WK30 manual this weekend.
I am going to host it on my Google sharepoint, so everyone can download it conveniently later on.
Preview...
Ordered, thanx!!
Ordered thank you!
thank you very much
Update:
For your convenience, please find updated manuals in English and German language in post #2.
Cool, I’m looking forward to this option.
Ordered, thank you for the code
Tried to resist but finally ordered two (DE) 
Thanks for the code and the manual 
Great light, gives a lot of pleasure in use.
I found out, when in ‘red’ mode you double-click you get strobo red alternated with white. Awesome effect!
Perfect. I will order later today 
Nice, thanks for offering this alternative source!
Great deal at $27 shipped with no battery from the Ali store. Hhmm, might have to buy another... I see the stock driver is 30 mm, but haven't looked at it yet to see if I can get more power per channel. Would be nice to swap the UV for green for example.
Ohh no. Ordered a 2nd from the Ali store but I see they are charging sales tax now. NY/county is $2.33 on this, ~ 8.6%. Looks like it's across the board now, all Ali stores, started about June 1st - boy, wasn't aware of this.
Thank you
Actually they’re are 2 strobes in red mode. You activate it with 2-click and toggle with 1-click.
I really like the versatility of the WK30 with its three different emitters. The cardboard box design is smart and very sturdy. Maybe this is something Sofirn could use for their packaging, too. Although installed into a very tiny reflector, I am impressed about the brightness and throw of the XP-E2 RED.
why no longer on amazon ?
Sorry for the confusion. Of course, it’s still available on Amazon but the groupbuy promotion is over. I have made some changes to the OP to reflect this.