My SP31 arrived today. So far I am impressed with it. I hope to do a short video review tomorrow if I can access my kitchen without the Mrs bothering me (it’s a nice large open space with good light). I have done a trial video in my den but having a camera behind and to the side of me really does not work well for me as I either go out of shot or knock the tripod.
Definite yes. So who owns two pipe wrenches? I’ve only got one myself.
I opened up the bezel to expose the LED using strap wrenches without much problem, apparently the retaining ring that holds the driver in place also has thread locker applied, was not able to open it using needle nose pliers, I don’t have a spanner wrench to try and get it to unscrew. 
Here is a pic of the LED side of the Sofirn SP32, notice the copper MPCB and a fastening screw on the side, good heat transfer there
Nice picture, nice subject, thank you.
Overall, they look like great lights! But it’s a bummer to hear that things are glued up. The ability to mod them when new LEDs and drivers come out in a year or two would be a big plus.
I’ve really appreciated that Tracy Wan is referring our ideas to their engineers, and coming back to this thread to give us mor information.
I hope we see rapid evolution of Sofirn’s designs with feedback from people here.
Question — has anyone measured the battery drain from the side switch?
I really like the driver buttonclick options on, and will recommend, the SP32 for people who want a light they can usefully clip on/off a bicycle.
The “stutter mode” pattern they came up with is definitely attention-getting, and quickly accessible with a fast double-click.
Here are xrefs to other threads with “Sofirn” in the name (individual reviews, mostly):
Suggestion — refer comments to this thread
(This is Sofirn’s main thread, opened by user Tracy Wan—-Sofirn)
So, anything new from Sofirn? I know we hit their engineers with a whole lot of suggestions for improvement, a few months ago.
But it’s getting into the months of long dark nights and time for more flashlight attention.
I understand the WW SF36 is coming out Real Soon Now, so I’m looking forward to that.
I really liked/like the WW SF32, and was bummed when I heard it wasn’t going to be sold anymore. So when someone pointed out they were still on AX, and at a Really Nice Price, I grabbed 4 more out of the 6-8 that were still left. 
Hmm, I’m still waiting for ’em…
I think the tailswitch needs adjusting (acting wonky after I dropped it a little), so might need the retaining-ring tweaking to set it right. Hell, I thought one of my UF F13s was DOA until I took apart the tail and readjusted the switch and retaining-ring.
Anyway, it’s not the brightest light out there, even with a cell like a 30Q, but I’m really liking the WW. And moonlight is quite nice, just about perfect for moonlight (but a little too bright for firefly), and mode-spacing is quite nice and even, too.
The SP31 (AKA Thorfire TK15S) has instant access (and momentary) to the previously used mode. So if you last had it on turbo, you will have instant access to turbo. I really like the combination of mode memory and momentary on this light.
BTW - has anyone ascertained what link Sofirn has with Thorfire?
I ain’t sure if they are connected at all! Maybe the models are made alike, but the rest doesn’t seem to be related.
About the instant access to turbo, I mean like a “special” click from ON or OFF to the highest setting! Does the SP31 have it?
I have the SP32 and it doesn’t, it just has the memory of the last used mode!
(I’m guessing this is the cool white SF32 model; the “emitting color” info is missing)
On sale for $9.49 starting in a few hours from this posting, for their 11/11 sale.
See also: https://www.aliexpress.com/store/2933049?spm=2114.10010108.0.0.72101699jMMkZi
They show one very(!) warm one on sale: https://www.aliexpress.com/store/product/Sofirn-New-SF36W-Tactical-LED-Flashlight-18650-Cree-XPL-3000K-Powerful-1000lm-Lamp-Torch-Light-Pocket/2933049_32836590381.html?spm=2114.12010609.8148355.19.78592860zWWNFg
CW. On the pænultimate line of the description:
Lumens: 500 lumen max LED Color temperature: 6500K
To me, the very definition of warm white is three thousand kelvin, there are much warmer light sources, in fact. In my opinion, ≈4000+K starts to be neutral.
Cheers 
Well, in case you haven’t heard, the Warm White version is on Amazon right now.
Sofirn contacted me to do a review. I didn’t even know this thread existed until now. But I will have a Warm White Sofirn SF36 in my hands this afternoon for review! Now that I’ve read this thread, I will be looking out for whether stuff is glued up or not as well. 
Has anybody yet tested the included cell? I don’t have a way to check, and I’d like to know whether it’s a good cell or not.
That’s the SF36W, yeh. Wasn’t out yet when I wrote it, but it’s out now as you say.
The bunch o’ paragraphs I wrote after was about the ’32, the skinnier tubelight.
(SF32, not to be confoozed with the SP32.)
Quite nice beam, smooth like a TIR, despite being a reflector (OP)!
The bezel comes off easily, reflector, too, but I haven’t tried prying out the pill or anything.
Same body, essentially, as a VG10. The beam’s a little fried-eggy, but that’s almost always to be expected. Throws quite nicely, though. Neighbor across the way got curious what was making that light when I went shining it around for some nighttime testing. Not in anyone’s windows or anything, just in my own yard. Honest!
Ssssssomeone (forgot who) put it through its paces a while back, probably when the SP31/SP32 came out, and they tested most favorably.
Maybe check out the ’31/’32 reviews if you can find ’em?
Tested like 2900mAH when rated 2800mAH, something like that. Fairly high drain, too.
I have a review on the light here in the Forum on the SF36W. The cell is 2800mAh, it works. The tint, 3000K, is, well, it’s warm! I like it.
Nearly for sure rewrapped and rebadged button topped 30Qs OR HG2s.
Hope they're using the same cell in this bundle: https://www.aliexpress.com/item/Sofirn-C8T-Kit-Tactical-LED-Flashlight-18650-Powerful-Cree-XPL-HI-High-Power-EDC-Flash-light/32839721852.html
I've seen those colors somewhere... :-D
Cheers ^:)
Tracy, I bought about a dozen Sofirn lights from Aliexpress already and although I like the aesthetical design and relatively good user interface, I can’t stand the cheap blueish cool white tint on the majority of your lights. Can you provide neutral/warm white 4000k 5D options for your lights? Even other budget lights are coming out with neutral/warm white options now. Also all Sofirn lights have a very defined hotspot, which is very undesirable. It would be great if you can tune the optics to diffuse the transition from the hotspot to the spill. Even the budget Utorch UT01, which is frequently on sale for $9.99 has a much smoother beam pattern than the Sofirn lights. Sorry if it sounded harsh, but I just want to provide some honest feedback for your design team for future improvements. Thanks.