Nice... I enjoy it much more when the manufacturer actually listens...
Yep, Sofirn’s pretty good about listening to feedback and improving their lights!
I’m kinda careful with it when it’s on high, so I haven’t popped anything yet. Even so, the head gets quite warm quite fast when turboed. 
With DTP and a better thermal path, this light’s gonna kill!
Oh, warm-white SF31! Please being that to market!
Everyone I show it to loves the WW light…
Ooh, that’s the one!
Last I heard from Tracy, the WW version was scuttled.
Lotta people who are used to Angry Blue™ light from those 3×AAA multi-LED lights and the like, are wonderfully surprised when they see something that looks like “real light”.
Damn, that ain’t bad, <12bux for it! Think I’ll get another one, in case mine “walks off” somewhere…
Umm, make that 2 more.
^
Cool. Nice to see another Ali vendor that sells Sofirn lights. In the past I have bought Sofirns from Elfeland.
Oh yeah, before I forget, for anyone in the states, it’s
for the WW version of the SF31.
For <12bux, it kicks arse.
So I have one of these on the way from Amazon. What 18650’s should I use in this light? Protected or unprotected??
Thanks
Hi bikenber73. If you receive the new version (don't know if it is available yet), you should be fine with unprotected cells. If you receive the first version (like reviewed in this thread), you will need protected to avoid frying the emitters.
I got the old one !
Thank You!
How can I tell if I have the old version or new version?
Use an unprotected cell, see if it fries the emitters?
Will wait for the xpl version
^
It's recently came out. I've been putting it though its paces and it's sweet. It's a litte beefier and has a side switch. It's similar to the hot rods we build here, but tamed down to be safer for the masses. It's rated at 2540 lumens (IIRC), but I measured 3K at startup and 2900 at 30 seconds with the stock cell (8.8 amps at the tail). It's DD. So performance will depend on the cell. Sofirn tamed it down by using XPL emitters (high Vf), protected cell, and FW.
The heat sinking on the light is top notch. Carries the heat from the head to the tail efficiently. The whole light warms up as you use it. Very nice. I should be posting a review in the next few days.
I must have gotten the old version as it was very cool and bright with the battery it came with and then I tried a 30q and killed it…
^
A 30Q would probably toast the old version (one reviewed in this thread) quite handily. I'm planning to mod mine by drilling a hole through the thermal pads and emitter shelf and then pounding in a copper wire. Then I'll probably reflow in some Nichia 219C's or something.
Does your light have a side switch or a tail switch?
Just the tail switch, I read the review but decided it would be a great idea to see if I could kill it with the 30q. I have to say that it was pretty impressive with the battery that it came with for the less than one minute I used it before I said, “lets put a new battery in that is fully charged”! That lasted about a millisecond after I hit the power switch but was a very bright flash…
^
Ha! That is a very BLF member type of thing you did. You definitely belong here. Welcome aboard.
Thanks for your interested in Sofirn light.
We will offer coupon or code in this thread. Special code for BLF from Sofirn. New arrivals— C8A 2 light group and max up to 1747 lumens.
Hello Tracy,
I already have a sofirn SP32a it is a very nice flashlight.
Will there be a discount code for the sofirn C8F xpl?
