I’ll take another picture later and correct the price.
I’m confused. Are you asking me a medical question?
Not medical. Just your opinion on if you’ve had it done, or think it’s beneficial for ailments? Such as for Pain relief
Sorry, I don’t know anything about acupuncture.
I only experienced cupping cup and scrape therapy.
Have you thought about developing flashlights with dual diodes and dual batteries? For example 2*LH351D/2*14500 or 2*50XHP/2*21700 and many other options.
I have already seen many such inexpensive flashlights on Aliexpress, apparently there are factories that can make such cases from aluminum at an affordable cost.
Does L21B KW CSLNM1.TG come with a 5A 17mm 12 group driver?
I think I received one with a 6A 20mm 12 group driver.
Measured 6.5A on 100% which is a bit high for CSLNM1’s max 5A.
Hope you don’t mind, Tim, but that’s one of the best focused Osrams I’ve ever seen. Did it come from Simon that way, or did you adjust it?
It came focused like that from Convoy. I ordered the L21B KW CSLNM1.TG from Convoy store on AE a few weeks ago. :+1:
It looks like the beam throws further than my Manker MC13 White and it has a much more focused pencil beam.
I need to figure out how to use maukka calibration lights and a UNI-T 383S to measure how far it can throw. :person_facepalming:
You don’t need calibration lights to measure throw.
Just take a Lux reading from a measured distance, around 6-10m is usually good. Then enter your numbers into this - Lux to candela (cd) conversion calculator
Well, the below example is same light same distance, both lux meters are brand new. I have measured against the Extech another 6 light meters (less and more expensive) and all are measuring minimum 20% higher, nevertheless none of them measured as high as the Uni-T. And the funny thing is, that the laboratories I managed to find are proofing the lux meters, but only with standard light source (not LED) only up to 1000 lux, while the Ex-tech only has data for LED. Measuring lumens is easy with Maukka lights, but throw is confusing for me with such differences. Any ideas how can I narrow down the results?
:
I got the same L21B (CSLNM1.TG, 12-group driver) and the driver looks similar to the one in your picture.
Using UT210E clamp meter, and with a fully-charged 21700 battery, I measured up to 5.4Amps tailcap current (not 6 Amps).
I'm not sure if this is the 5Amp or 6Amp driver. The box label indicates "5A 12-group" though.
Beamshot of the Convoy L21B (Osram CSLNM1) (5 Amp driver? - although I measured around 5.4 Amps max tailcap current when using a full charge battery)
for reference, this is the how the scene looks during daytime
distance as measured by Google Maps
Thanks!
I measured this with my UNI-T 383S:
1488 x10 lux L21B CSLNM1 at 6m = 535680 cd
Throw: sqrt(535680 cd x 4) = 1463m
And Manker for reference;
4831 lux MC13 White at 6m = 173916 cd
Throw: sqrt(173916 cd x 4) = 834m
Distance and height could be off by +/- 10cm when placing the flashlight at one end of the room and taking the measurement. I used Max mode and moved the beam across the sensor.
The distance is critical and does vary the numbers quite a bit. I get 155,800cd from my MC13. So yours is either performing really well, or your numbers a little high (or mine low)
I’m using a Vapcell M11 18350 charged to 4.20V
I was holding the flashlight on top of two boxes. 
Simon, can you tell us when the 12 mode driver will land for the T3… will be waiting for that one.
As far as I know, the Convoy L21, be it B or A, uses a ∅22mm driver. Then, the ∅22mm “SST40” drivers (12-groups, 2-modes, 4-modes) claim up to 6A of output current, i.e. they should limit current exactly to a maximum of 6A.
We already know there have been some shenanigans involving the aforementioned driver family. However, d_t_a claims that his L21B only goes up to 5.4A, which is abnormal to say the least… ¯\_(ツ)_/¯
Just received the Convoy M21E in the mail today. One little glitch, when turned off 1 of the 4 quadrants of the XHP70.2 stays on. Unscrew the tail cap and it fades out in about 2-3 seconds. Tighten the tail cap and that one quadrant comes back on. 
I measured 6.42A with a 40T and 6.5A with a Vapcell T50:
Purple ring might be AR coating? I’m a little worried that 6.5A might be pushing the CSLNM1 too hard.
That purple is AR coating. And i think your LED will be fine. heres why i say that -
man, Tim that reflector focusing is Tight! And althought the osram data sheet says 5 amp max, we know all mfg spec sheets under rate their max pulse amperage in order to achieve the most life out of the leds..
I think youll be fine at 6.4 amps, although it is high and 6.0 amps would be better, i found this test on blf from 2018 from member Luminarium Iaculator https://budgetlightforum.com/t/-/53735
They say that the cslnm1 on an FET driver with samsung 30q lasted remained at 7 amps with no losses for 3 minutes multiple times. and that also the emitter performed best between 5.8 - 6amp.
I have also run an M21c with 6amp sst40 driver which i installed a CSLNM1 white into, and it was a BEAST, the LED never got close to AngryBlue (TM), and was one of my most impressive throwers. (i shouldn't of sold it)
This is unfortunate.. Mine should be in any day now.. i will be pretty dissappointed in this. I dont even want the xhp70 version, i just had to see the host in person and it was worth $35 for me to do that lol.
I ordered a bare xhp50.2 4000k at the same time to throw into it to see which one i like better
Honestly, once Simon is done with the new 3 volt driver, i will buy it and be swapping out that xhp70 for ...(fill in the blank) CULNM1, CSLNM1, SFT40, etc etc etc.