[Available again! - BLF special edition light] new Sofirn AAA twisty high CRI 5mm LED

Same here. Optional magnet. I don’t care if there is a slot, but will not use it.

I would probably use a magnet if it had one, but for a keychain light with only ~8lm output, it’s not a big deal if it doesn’t include one. I like the idea of putting it inside the tail-cap instead of outside. Then, those who don’t want their light to be magnetic can remove the magnet (if it’s clipped in and not glued) and not have a huge hole in the back of their tail-cap where the “missing” magnet would be.

I added a 5mm magnet hole in my drawing. A bit of a mess now but focus on the red area, as you can see, 5mm fits.

You can youtube niteize upgrade for mini maglite. It is a 5mm led upgrade kit with a reflector.

Here is one video with the beam shot timestamp.
Nite Ize Upgrade Maglite Mini

The issue is the twisting action will move the led to different focal points in the parabolic reflector. This will cause all sorts of artifacts to show in the beam. Everyone remembers their old maglites and the various focusing beam patterns. I really hate those patterns.

There are a few solutions if Sofirn wants to use a parabolic reflector and address the beam pattern issue:

  1. diffuse lens
  2. really orange peal reflector
  3. smooth reflector with a flat white paint to diffuse.

A 5 mm magnet does indeed fit (just). I rechecked the dimensions with the help of a drawing. A 5 x 3 mm magnet should most definitely be strong enough.

Some notes on my drawing:

  • I've been cautious and used 14 mm diameter, if it is actually 14,3 mm all the better.
  • The magnet circle is a touch too far to the left (to the outside).
  • The trit slot is probably a bit too big.
  • The split ring is the same size you'll find on medium sized Swiss Army knives.
  • The total height of all this is 3 mm, the hole is 2 mm plus 1 mm of material on top of that (this is the same as on an Olight i3E, the central lug of that has a total height of 3 mm and a 2 mm hole). Or in other words: non of this adds length to the light, the 3 mm are needed either way.

There is a slight concern that there might not be enough material left either side of the 5 mm magnet, but I'm sure Sofirn is able to figure out if that is the case or not (not forgetting the chamfered edges of course).

I just realize that this light must be a 3 piece host in order to accommodate a removable magnet. I hope sofirn can test the structural integrity of the tailcap since we wanted a robust flashlight.

Count me in the group that for sure does NOT want a magnet in this light.

In fact, count me out of my 2 piece request if this DOES have a magnet.

I think it is best if the light does not come with a pre-installed magnet (to make the most amount of people happy).

There are two sensible options:

A: The light does not come with a magnet at all (but with a cavity for one). If the user wants a magnet they need to buy and install one themselves (same as with the trit).

B: The light does come with a magnet, but the magnet is not pre-installed into the light. If the user wants a magnet they just need to install the one that is in the package.

I prefer option B, because it is easier for the user.

No one is even bringing up a permanent magnet. The removable magnet is optional.
We are just brainstorming a tail cap to accommodate the requested features.

I believe the biggest priorities are cost and robustness.
Magnet cavity, tritium slot, centering ring hole and etc are secondary.
However, if we can incorporate many of the requested secondary features in the design, then why not?

If you don’t want the magnet, then leave it in the bag and don’t install it.

I’d like a magnet, but not at the cost of having a removeable tailcap. I’d much prefer the body and tail being 1 piece like the E01.

I have to say, I really like the tailcap design that Djozz and Noir are converging on. Definitely a step up from any other AAA tailcap I’ve seen :+1:

I think it would be a good design for a 1×AA light as well. The only potential snag there is whether the magnet would still be strong enough, even with the opportunity to scale it up to (I presume) 7×3mm in the larger tailcap.

I agree that a 3 piece might not ideal for durability. There are 2 options that I can think of at the moment.

1. Bore out the magnet cavity like the tritium slot and include/sell an aluminum plug and/or a magnet to fill.

2. omit the magnet feature, but design a tail cap with enough surface area so people can glue one on if they wish.

I love the updates. Nice design ideas on the tail.

- central hanging is no big deal for me, tailstanding is.

- I’m against the magnet, and would love the trit slot option.

  • no metal bail (like the ReyLight aaa) please.

This is a drawing that I sent to Barry. The white area is machined out 3mm lower, which should be possible in one machining pass with a 3mm cutting tool. The central 2mm hole should easily fit a 10mm inner diameter split ring (the circle in pencil is 9mm).

It shows the position of a possible magnet hole and a possible trit hole and I told him that discussion was still going on but that in the end Sofirn decides on which holes to add or not.

Looks good, except for those 3 mm half circles to the right, they are a bit odd and unnecessary (and make chamfering all the edges more difficult). You have the drill for the hole going through anyway plus you could tilt the tool 90° and remove the 3 mm quarter circles in front of the hole if you don't want them. Or Sofirn could use a 2 mm tool for everything (except maybe the trit slot) to save one tool change. Or...

To be honest I don't think it is worth discussing the machining details, because Sofirn needs to figure this out by themselves. We don't know how they like to do things, what machines with which capabilities they have and so on.

Is the light enough from one led?

Yes, Sofirn is perfectly capable of figuring out the machining details themselves, it is just that Barry, after seeing the discussion, somewhat grumpy said that simple was preferred, so I had to show that clever solutions could simple too.

I was a bit worried about if the 2mm thick 3mm long hole would indeed easily fit the 10mm split ring that I have, so I cut a 2mm hole in a 3mm thick small piece of aluminium and checked. Well, it does fit and moves easily in the hole, but there is actually hardly room to spare :innocent:

How do you define “enough”?

This light is basically an upgraded clone of the beloved Fenix E01, which only uses 1 5mm LED and for what the philosophy of the E01 and this light is, yes, it is enough.

Will it be enough to be more useful than a smartphone that we all carry in the pocket.

The size does allow for triple setup.

A triple setup totally defeats the purpose of a light like this. If you want something with that kind of output, it’d be best to get something with a high cri Nichia.

Smart phone lights have come a long way over the years as far as output goes and the chances are a lot of them will be higher in lumens than this light. Cell phone lights are all flood though and lux can be just as important as lumens. No idea where these lights will stand on that point though.

This kind of light is the kind of light you never have to worry about working or using too much. In an emergency, do you really want to burn your phone’s battery to see?

This light is a task light, used to light up things in your immediate area and it will be bright enough for that.