Nice conceptional work again Fl2! With a classy result!
Dang , that’s really nice , Firelight2 . Nice job . 
For once I have to agree with a couple of members comments here Firelight2. Nice work.
Finally finished my own 18650 lantern mod. I have no build thread, and I can not recommend anyone making it precisely as I did because it involved so many little customisations and part-making (nothing special but too many to count) that taking a different approach would be highly recommended.
Description: I use an old Supfire A6-T6 as a host. The light comes from a 2000K Nichia E21A driven by a 3x7135 biscotti driver. The optic came from a Philips household bulb. The bezel was heavily adapted, an aluminium ring was made to clamp the optic and attach the roof to, the ledboard was raised with an extra copper spacer, and a sturdy roof was constructed, to protect the plastic optic, but more for aestetics.
It is hopelessly inefficient, at max I measure 1.05A and just 80 lumen, that is only 19 lm/W. For comparison, just yesterday I measured the BLF-LT1 in warmest 2600K setting at 43 lm/W. I think the main reason is the ultrawarm 2000K 90CRI led, but the optic may be less efficient than the LT1 optic too.
Still, it will have high practical use, as a night light for my son (at 25mA/140hrs runtime) when not at home, and when camping 80 lumen is plenty, normal use when sitting in front of the tent will even be lower (we hardly travel by car, the BLF lantern will in most occasions be too large to take with us).
djozz 
Din 580 eye bolt, most pretty looking thing you can attach to the flashlight ever.
Is that the diffuser of a E27 philips LED bulb in your lantern?
This is an eye nut actually but yes, I bought a few on ebay, rvs M3, especially for this mod because I could not think of a nicer way to attach a ring 
It was a E14 bulb in my case, of this type (pic shows E27 version):
But I think this specific type with smooth illumination is not sold anymore, it is all irregular optics now, apparently people like irregular illumination better.
Exactly that one, i still have a few around 
Very cool, Jos. I like the creativity of it!
Kinda reminds me (in functionally) of the night light I rigged up in one of my kids’ rooms: a Sofirn SC31 with a custom driver (made for ultra low power and has a watch crystal to keep time so it turns itself on and off). Looking at your creation, I wonder if I should 3D print a diffuser to make it more of a lantern like yours (currently mine is just doing ceiling bounce).
SC31B from their Amazon promo, originally had a SST-20 ~6750K, cool white by anyone’s definition.
Got a little refresh with LH351D 5K 90CRI and the 18350 body tube from SP40. Bezel had to be removed with pipe wrench + old piece of belt. It’s not loctite but it’s not gonna come off with your sandal
Slight yellow halo in the edge of the corona but the hot spot is nice and defined with the spill looking clean. I may slice it some day but for such a cheap light I may not just to keep the max lumens higher. ~675lm on max.
You didn’t happen to grab any pics of the driver, did you? I’m curious if they actually updated it since the SC31 and if the layout is the same/similar.
Didn’t even try to remove it sorry.
CRX Brass KnuckleHead IV SST-20 2700K 95CRI - R1 - 16340 - Rv Clicky Tail Sw - 250lm.
Luminus SST-20 J2 JA3 2700K 95CRI emitter
Noctigon MCPCB
16mm ARC glass
Single mode
Reverse clicky tail switch
Magnetic tail
GITD details
Max - 250lm/ 1A
Length – 52mm
Width – 24mm
Weight – 116g (With 16340 cell)
I've never used an emitter with this low K value as I thought I wouldn't like it but it's not too bad for a little mule.
After seeing Djozz lantern post I decided to make a wee diffuser for it too from an old berocca tube.
Changed something on my skilhunt H03.
It was recently a H03F with optional diffusor over the reflector, but it broke.
It had a SS bezel from a laser cutter and dc-fix milky foil.
And it had already a lexel-driver with narsil.
Now I have swapped the XM-L2 to a XHP50.2 3V. And I opened the bezel to a 45 degree opening as the original SS-bezel.
It makes around 2000 lumens at start, because the led-wires are original, that means thin and relative long. But it heats up quickly and I do not need more power.
And I repaired my SIOC8 programming clip. There were some bad connections.
Later I want to flash anduril with ramping-level of 50%.
Looks good CRX!
I took out the SST40 and driver of my Convoy L21A and replaced it with a 22mm 14* 7135 driver and a Led4power mcpcb with a 1mm white flat and one of Simon his 3030 gaskets which i sanded down to get a better focus.
Result is a very impressive laserbeam (500+ kCd on a ~4V cell)
Nice combo Yokiami!
Maybe it is time to do what the Canadians did and have a dutch meet-up, next to a nice line of windmills to check out some throwers.
Count me in
How is the windmill situation over there? 
(near Amsterdam not great)
Where i live, it’s peaceful and quiet.
You have to drive 40km Northeast for a large windpark.