Well, its here… First impression is not too shabby i must say, seems like the real thing. 
Bummer it only has two groups (off / high; off / low / med / high / strobe / sos) and of course the integrated 21700 with no easy way to swap the battery.
Will deliver beam shots in the next few days or latest the next weekend.
Is it using a LEP? or LED?
How do I test for that without taking the light apart? ;) I'd say LEP. It has a pencil sharp beam, that seems too strong and sharp for a single LED.
Compared to my C8+ with Osram W1 its much stronger and more narrow. Also nearly no spill is present. If you look deep into the lens you can only see what seems like a phosphor disc, nothing else.
Sorry for the shitty camera and no clear focus .. :)
Left: C8+ Osram W1, Right: Natfire SF2 (inside Spill of W1)
Only Natfire SF2:
Hmm, or it could be some sort of preconfigured LEP module - maybe something used in the automotive industry? Or maybe it's really a LED, anyone seen something like this before? I took the front lens off and that is how it looks like under the hood:
Beam w/o front lens:
Glad to see your impressions are indicating that it is a true LEP. I’ve been looking forward to the prices coming down enough that I can justify purchasing one. Thanks for taking the risk for everyone! Maybe I’ll be able to own one yet.
Ha, and that nasty artifact in the beam is gone after I took the front lens off and put it back 8) LOL^
EDIT: Looks a lot like something that could be a sibling of the ominous “WP-T2” Laser LED Module, also used in other LEPs.
see:
Can you take a pic without the artifacts?
Received mine today, so my review will be up this week. Beamshots tonight if it’s clear
Sure!
Whats now left is purely some lens flares from the camera (the streak + flare at the top and bottom)
It’s almost certainly a true LEP light.
If it were a cheap LED zoomie, you’d see the LED die when you looked into the bezel. You wouldn’t just see a phosphor circle.
You can’t get to the cell very easily, I stopped trying since I’d rather not break it before finishing the review. The cell seems to be good capacity though
What are your initial impressions? Did the manufacturers overstate the specs in a meaningful amount?
I’ll find out once it’s dark. Quite nice build quality though, not bad at all.
Lumens aren’t stated, but only getting 171, 80, 42
Manual says to keep away from explosive objects lol
Wow, this SF2 is very surprising, it’s easily hitting a grassy hillside at 1300m. I’m just going out to get the video and photos for my review. Later once I’m done I’ll get a cd reading at 20m
150m
240m
1100m
Awesome 
Looking forward to more details.
following! this is great!
Hi everyone. Having seen this thread as well as the very reasonable price for this LEP, earlier today I placed an order online.
While I was on Aliexpress I had the chance to have a chat with the manufacturer. I was curious if they could produce an LEP with a lower CCT (to avoid blue light glare/light pollution especially in the presence of dust and/or humidity) and I suggested they gauge potential interest by our community by posting on the commercial sellers forum.
They now have made such a post, a poll, in fact. I already responded, indicating interest without a prepayment (I have never seen prepayment being discussed on this forum).
Anyone interested in such a LEP, you can indicate it in the poll. Myself, I am but a flashlight enthusiast, no technical background, so anybody with more knowledge who is inclined to do so, you can comment in the poll and/or make any suggestions/talk to the manufacturer.
It is not every day we as a community find a manufacturer that might be willing to make something tailored to our community, maybe something will come out of this.
Rats! Switched over to the low, med, high group and noticed the low and med are pulsating / shimmering. Yet to be confirmed, but could very well be bad PWM.
Further testing, and more reviews need doing before recommending.
Great range on High though.
No surprises for an unknown brand. If they listen and sort this out on the next batch, it’ll be a great unit