Yes it does 
. That silver piece of wire at the tail can be freely moved from side to side, so when you hang it from something it hangs centrally. Have a look at a video of the Pineapple Mini, for example this one.
That is true, but the tail design of the A01 is not particularly brilliant. The flat area is very small so it doesn't tailstand very well and it has some slightly sharp edges, plus there is no place for a trit or a magnet.
Yeah, sorry. I didn’t see that pic that Huey posted. :person_facepalming:
I can get a poll/survey up later tonight regarding tail designs.
I’ve never been a fan of wires such as on the light that Huey posted, but my experience might be clouded by cheap lights that had them fall out or break. I prefer an easily replaceable split ring attachment point instead, personally.
The A01’s tail design is very large and poor at tailstanding, even if it is sturdy and can take a split ring.
I totally agree. One step/light at a time.
Roger that.
Not a fan of a wire type keychain attatchment, goes against the rugged, simple nature of the light IMO.
Strongly agree - it’s not for this light
10,35mm on the seam
They have often a thicker wrap than the alkalines.
Btw have we a name for the light?
I refer to it as
Sofirn 5mm CRI
I only suggested the Pineapple Mini tail design because it hangs centrally (which seems to be a wanted feature) and hadn't been mentioned before, but the reliability, ruggedness and replaceability is indeed a concern, coupled with the potentially higher cost it is probably best to skip that design.
Those CAD visualisations are nice. I’ll delightedly buy a light that looks just like that. The reversible clip for attaching the light to a baseball cap is an excellent plan - I’m always doing that with my 1×AAA lights :+1:
I’d buy the AA version of this too, if anyone ever made it - same LED and driver, but 3× runtime. Put the AAA light on a keyring, put the AA one in a backpack or a glove box. (I said that about the BLF-348 as well 
)
I’m in for 2 of the 3200 please.
That was my first thought after seeing those renderings. 5mm LED’s have been very fragile in my experience. I’ve had them bend and snap when not well supported.
If 6usd or thereabouts happen, I’m in for at least 2-3.
They can not bend in this design, please look at the drawing, the plastic part of the led is surrounded by the aluminium shaft for half its length, the part sticking out is in a cavity. This is not a weak point for the robustness of this light.
Count me in.
The parabolic reflector design does look reasonably robust to me; the bottom third of the LED encapsulation is still well socketed into the reflector. If the light is potted, it won’t be possible to push the LED backward into the driver cavity or bend it sideways, either.
It might not be quite as indestructible as the deeper-set arrangement of the Fenix E01, but it should still be pretty solid.
However, a standard parabolic reflector with the LED chip at the focus may not behave as expected with a 5mm LED, because the LED encapsulation is not curved for the light to arrive at right angles to the boundary between the encapsulation material and the air, which is what you need to avoid unwanted refraction.
Instead of having a hemispherical dome centred on the LED chip like a power LED does, a 5mm LED has a cylinder with a hemispherical dome on top. This is liable to bend the light path as it moves from the LED encapsulation to the air, so different parts of the parabolic reflector will see the light appearing to arrive from different points with a range of apparent offsets from the reflector focus. This means it will never form a collimated beam, no matter what you do.
In short, I suspect that the parabolic reflector will produce a fairly horrible beam pattern. I’d still be interested in seeing a picture of the actual result, though, just to make sure
I also suspect that the deep-set position of the E01’s LED in its conical reflector sidesteps the effect of varying light paths by simply discarding all light exiting the sides of the LED encapsulation.
I presume that it would be possible to create a reflector curvature that would compensate for the refractive effect of a 5mm LED’s encapsulation, but making such a bespoke reflector would be astronomically expensive by flashlight standards. It would also be thrown off by variations in the 5mm LED shape from one LED manufacturer to the next.
Personally, I’d be inclined to stick with an E01-style conical reflector, on the basis that we already know it works.
^ I have had those thoughts, in fact the curved top of the led is a lens that projects the hotspot and that light is not hitting the reflector. The reflector is there for light that comes out the side flat part of the led, in the hope that it can be collected and added to the hotspot. I can see that happen with some experimenting of where the correct focus is. I’m not sure either if it really works, and if the amount of light going sideways is at all significant. I have no 60 degrees Yuji leds or I would do some experimenting myself.
If the Sofirn folks find that it does not work, they will automatically return to the conical reflector, they already reported that is easier and cheaper to do the cone.
In for a 3200k
Here is a survey for the tailcap. It’s been a while since I’ve done one of these, so if there are any issues please let me know!