BLF A6 with X5 reflector, or BLF X5 with 18650 tube (A6 body)

Are you talking about these convoys that despite the reflectors, are way off oversized than they need to be? Or is there any new flashlight that looks like the wish of this topic (second flashlight from right to left)?

Lumintop sd mini is a good one

MH20 (with cheap clone)
E40R

Still looking for a direct drive, BLF X5 reflector on a 18650 body with tailswitch. Come on, no manufacturer made one yet?

This small little guy will have the most size/throw ratio of all 18650 flashlights ever. It will be the ultimate hiking flashlight where every inch and every gram matters.

Isnt it more simple ask Simon about smooth reflector for M2?

No, because M2 is bigger than X6 (you can see in the pictures). And M2 it is not even direct drive: big size + low output.

The light we are talking about will be smaller than X6 (the same size of the A6) and with the BLF X5 throw: Small size + high output.

This is not possible.
Take X5 length, add 20mm and here is right achievable size.

I have already done this here.

No you havent.
You need to calculate internal length, not parts that you see outside.

It’s a good concept. Trouble is, many manufacturers and people in the business are still caught up in the e-switch hype, soda cans and large body form factor. To give you an example, take a good look at what Astrolux is doing now. They’re selling us products we don’t really need. Creating a demand for those ugly monstrosities as though they are really useful for practical purposes.

Internal space of the head will get wider from the orginal BLF X5 housing to accept to larger 18650 tube thread and that is it. Why would the head need to be longer?

You just cant calculate it right using another way. You just dont consider many things.
If you dont want to make full engineering drawing, just take a look at existing flashlights.
A6=120mm with 12mm reflector.
X5 reflector is slightly over 19mm.
M2=135mm with 22mm reflector. Yes it has little more spare place inside because first batches had pilled design, but it helps to fit longer cells (like 71-72mm).
X6=137mm with 24.5mm reflector.
So, based on X6 properties (bezel/o/ring/glass thickness and config, shelf thickness, cell capability), you can get 137-24.5+19=131.5mm length.
If things were so simple as you think, every *fire company have already presented 100mm flashlight with 18650 cell.

You can always try to widen the tube part of the X5 head and tap new threads so it will fit the 18650 tube, just an idea

Congratulations you've just made a 4/7's light

But that does pretty much match the desired lenght. Why did you pick X6 head properties? The proposed light has the X5 head with enlarged thread to match the X6 tube. According to the dimesions I got (80mm for the 18650 tube + 48mm X5 head) total lenght would be about 128mm. Ok, do you want add 1 or 2mm to the final lenght? That’s fine,130mm final lenght is still good enough.

That’s the whole point. The flashlight is already made. Widen aluminium wouldn’t work, it just need the machining of a new head.
Actually I want to do the full engineering drawing for this, but I need X5 and X6 drawings as reference. If someone could give me internal dimensions and tolerances I can make it work.

Does this have direct drive 1400 lumens output? What is the total lenght?

Very interesting, I’ve been looking for such light since long time, with the addiction of the 18350+18650 tube: 18350 Thrower

Any further developments on this or a product which fits the bill? I absolutely love my X5, its the perfect combination of throw and pocketability. Runtime though just isn’t enough for a longer walk, even on a lower mode so I find myself using something else or taking 2 torches, be really nice to get the runtime of an 18650.

Made my own X5/18650 and a X5/18350….

Turned and threaded the head O.D. 7/8-20……

Sounds like a D1 might fit the bill…

Is this something you would be willing to do for the right price?