In which case you would have to identify thousands as K, and then Kelvin as a second K? So 4.485KK? You can’t assume the period point identifies thousands without the K (thousands) indicator, it leaves to much to the imagination and doesn’t clarify the exact 4885K color temperature. If you were talking 10.5K lumens then yes, that’s fine, but in this case it needs to be more clear.
Ok, additive for the BLF Special edition SP70… I have changed the factory MOSFET to an Vishay-Dale SIR404DP and replaced the leads with 16ga Turnigy. With spring bypasses made by using 20ga Turnigy wires inside the dual springs and by using Samsung 30T 21700’s I am seeing a start value of 10,500 lumens and a 30 second reading of 8700 lumens. I am pretty sure a good AR coated lens would enable more lumens out the front, need to check without the lens to see what may be happening with this clear glass…
Oh I agree that in this instance the comma separator should be dropped, more just a, that’s how they do things 
Right, and I reckon we all pretty much know that… I tend to stumble on stuff like that because I take things literally, that fine line between black and white, right and wrong. I have never been good at reading between the lines. I got it, after looking at it a few times, so I guess everyone else will too.
If Lux Perpetua ever asks me to build him a light I’ll try to source 4.885 Kelvin emitters…. 
Edit: Oh NO! I get it now! I’ve been PUNKT! 
This lights OP reflector measures 74.3mm opening diameter and 48.4mm deep. This depth to width ratio certainly needs some improvement if a mirror finished reflector is going to be implemented for the BLF light.
Ok, I finally got a reading without the glass… the light with glass lens is making 10,500 lumens at start… without the glass it can do 11,220 lumens. so there is some 720 lumens being lost to the glass. I don’t think this is a huge deal and the glass is pretty good, I would like to see the 1.8mm thickness increase to 3mm though, at these diameters the glass can get broken easier so a thicker glass is warranted, or the use of a really good Acryclic with AR coating.
You are right, but not only in germany :
Those british definitely were bad influences : imperial system, dot instead of a coma, etc.
Interesting! Well it looks like the British use the dot for decimal too 
Great map though.
And wow that’s a hefty light! Agreed re: deeper reflector though if possible.
Talking about the “good influence”, there’s only 19 days to go for Le Grand K before it is replaced by a measurement based on the Planck constant.
Funny enough, a brit (actually a Scot, Maxwell) was at the base of getting rid of all the artifacts and get the metric system really right.
You may wish to have a peek at a 21700, XHP35-HI thrower Sofirn has upcoming in another thread: Sofirn C8G
For multi-cell XHP35 HI lights, Astrolux MF02, Astrolux MF04, and BLF GT (also GT70, using XHP70.2).
So how do they interpret whether 4,885 (four thousand eight hundred eighty-five), which is read as 4.885, is actually 4.885 (four and eight hundred eighty-five thousandths)?
488.555 would be even more confusing 
Is having 1s or 2s battery configurations with extended tube like Convoy L2 is out of the question?
Yes, out of the question.
Sorry Jos, I was not aware of this issue. I moved everything from post #2 and #3 to the OP. Hopefully, this will resolve any future problems with new posts.
Sorry Dale, I didn’t expect to cause that much confusion when talking about CCT and Kelvin as the base unit. However, I do agree with you that using points and commas as decimal separator can sometimes be confusing. ;-)
That‘s exactly the root cause. I‘m used to separate the decimals by a point, not by a comma. That reminds me asking the cocky question what the internationally agreed standard is. Point or comma? :-D
Haha...I‘d love to get a DB Custom 'one of a kind' with 4,885...sorry, 4.885K. :-P
I just wonder if my eyes would even notice a CCT that low. :-D
Dale, from this day forward I promise to keep in mind using no decimal separator anymore. Result: No confusion for anyone. How’s that? :-D
LOL, do what ya gotta do man, I’m stuck in the dark ages… will figure it all out sooner or later.
Dale, you got quite some light for someone who‘s stuck in the dark ages. :-D
Cheers, Thomas
So is it possible this special edition may come out in 2019? seems like it’s still pretty early stages?
I think it will come out in 2019 no matter it’s a SP70 BLF version or a compeletely new light if only you guys reach an agreement soon.
“retaining ring, smooth reflector, different tint, no switch tail cap, Anduril firmware”
This was Barry’s list from the other thread, it looks good to me.
Not sure how much time Toykeeper has available to get the configuration files right with the lantern and FW3A on the go.
Meanwhile the version of Narsil Tom E has in his MT07 is proven and probably perfect for this light.
Dale mentioned going to thicker glass to prevent cracking.
Is the plan to reshape the existing reflector and give it a smooth coating?
Maybe find an existing reflector and change the front of the head to match.
This looks interesting, wonder where Ban found it. http://kaidomain.com/Flashlight-DIY-and-Tools/Reflectors/S022485-86_2mm-D-x-84_7mm-H-SMO-Reflector
Not sure if Sofirn is willing to do that. I’d pay $10-$20 extra for thicker glass and a bigger reflector, would anyone else?