https://www.aliexpress.com/item/1005001422574458.html
So, how is the shape of this S21B? I presume it is a flashlight of the same class as the S21A, isn't it? 
You’re better than this Barkuti
Is reflector deeper than on S21A?
You’re kidding, right Mr. Barkuti ?
cheers …
Hi Simon!
Is this adapter suitable for S21B? It would be nice to have a 5A 12groups driver with a LH351D 4000K in S21B host. I guess you don’t have a 20mm temperature controled driver with lower current.
Grey S21B still unavailable though ?
It seems like Mr. Simon has been really really busy these days.
Many more new products have been added and available at his AE store.
Also, he mentioned something about Crescendo driver in another thread.
I don’t have any firsthand experience with Crescendo but I heard that it’s pretty good for tail clicky switch.
Is there a real chance that it’ll be available for S21B? Of course Mr. Simon himself is the one to answer this question.
Meanwhile, I’d be glad to hear from you guys about your experience with Crescendo…
yes, suitable
gray S21B in stock
Does Crescendo Firmware will be available?
i test L21A with KW CULPM1.TG and 8A driver today .
The illuminance value at 5 meters is 14190LUX, and the range is about 1190 meters.
Darn. My S21B shipped before I found I could get it in grey. Doh!
Anyway, I found a link for a grey S21B with osram KW CULPM1.TG 6500K emitter:
https://m.aliexpress.com/item/1005001430069541.html
What’s the total lumen on this baby?
Throw distance should be high but what is it? 1190 meters like the 8A one above?
I bought too many lights recently but could could use a long distance thrower in my collection.
No, that’s with it installed in the much larger L21A. You need a good size reflector to get that distance
That’s great!
But I couldn’t find it at your AE store , you have not uploaded it yet?
EDIT :
It’s an option within the S21B item with KW CULPM1.TG LED.
Total lumen for the Boost HX 2mm^2 (or KW CULPM1.TG) in the bin that Simon has (8RF) should make 1700-1900 emitter lumen at 6A.
Considering bit of loss in the lens and the driver being slightly less than 6A, the OTF lumen might be a bit less.
what LED and driver in S21B ?I can add a temporary link
Thanks!
That’s about 354 kCd, i think it can be driven harder.
I will test my L21a with Led4power 2mm and a 7,2 A driver to check the results
With the 2mm 3030 at 6.7A i got 1200m but this new led should be better.
There’s a YouTube video of a guy using a FET driver in a c8+