BLF Kronos X6/X5 GB - Group Buy now closed.

Damn...that is a good idea!! We never thought of that.

Tattoo it right on the dome!

So bugsy have any idea where it’s at?

And details on how you did it?

Nope. I do not have mine. None of the samples were serialized. My guess is that they are in the flats (where they should be) but for all I know it could be on the lens

I got mine this afternoon and they’re Gorgeous! :slight_smile:

Straight out of the beautiful box…

SS/Cu X6 with Efest Purple 3000mAh 18650 @ 4.16V rested
5.29A for 1259.25 Lumens
2.29A for 659.99
1.00A for 337.76
0.43A for 163.88
0.15A for 49.96
0.04A for 4.62
0.02A for 0.276
Lux 52Kcd for 456M Throw

Cu X5 with Red AW IMR14500 @ 4.21V rested
4.16A for 1100.55 Lumens
2.10A for 607.89
1.05A for 336.38
0.46A for 163.19
0.15A for 49.16
0.03A for 5.04
0.01A for 0.3795
Lux 28Kcd for 334.66M Throw

And a bad animated GIF, in part thanks to the neighbors kid who felt obligated to come watch and make shadows…

The Serial Number is directly under the KRONOS brand, sharp and dark and clean and very legible, beautiful piece of work all the way around.

Came with clear boots installed, the light pink boot and a black boot in a bag with a lanyard and SS clip laser etched with the model number on it. All the accessories were in a sealed bag, both bags stuck in the rectangular accessory area in the box.

The nice box was in a white cardboard box that is well fitted, this in turn in a multi ply box also well fitted and taped. The entire ensemble then in the DHL Express bag. Extra O-ring for each as well. I put the clip on the SS X6, but not on the X5 as yet.

Brilliant!

But who leaked our plan for v2?

Thanks for the GIF Dale.

Looks like some big numbers from both lights.

Hope mine shows up soon.

Thanks You to everyone who made this happen.

Very NICE! Glad to see it arrived safely! Now I just hope they know how to properly protect the unboxed versions.

Awesome lights! Box looks well made too.

Did you notice a protective coating or finish on the copper?

I should have paid for faster shipping.

The unboxed versions still come in a box… it’s just cardboard instead of wood, as shown in the product listings. I expect it’ll have banggood’s standard padding around it. So, virtually no chance of the light getting damaged, and a low to medium chance of the cardboard box getting dented. I’ve received a bunch of similar boxes from banggood and they’ve all been fine.

The copper is coated on both lights, seemingly with a plastic type overcoat. I don’t know what it is, but it’s there.

The copper light threads together nicely, I didn’t really notice anything good or bad about how it fits, but the SS light feels simply elegant. Even the feel of the light externally has a finished, smooth, something about it. Like it, a lot.

Just took em both apart at both ends of the tube and the fit on the little Cu X5 is a bit tighter, very nicely done. There’s a little bit of side to side play on the tail cap of the SS light but the threads are mated well enough that it feels good going on, very positive feeling to me and smooth. The SS light seems to have been polished to a larger degree than my sample, more refined.

I don’t see any kind of centering ring at all, and no flat base inside the reflector. The HI emitter sits high in the reflector cup giving a good tight hot spot with a smooth spill on the wall. It’s about dark out so I’ll check beamshots after supper. :wink:

Beamshots from the new X6 and X5 lights. These are with the same batteries, so the X5 is at a disadvantage as the small cell falls faster. Canon G1X at ISO1600, f/5.6, 1/2 second shutter in Manual Exposure with 2 second timer on a tripod. 97 yds to the red 55 gallon drum in the middle of the shot.

Cu X5 with AW Red IMR14500 button top

SS/Cu X6 with Efest Purple 3000mAh 18650 flat top

If you left click on each picture they will open in a new window, click that pic for full size 1200x1600 image. Then flip back and forth to compare. The little X5 does a remarkable job but the X6 beats it in the intensity of the hot spot, as you would expect it to with a larger reflector and hotter cell. Still, very nice output from the pair, straight out of the box.

Great job Dale.
You’re going to have everyone (including me) chomping at the bit waiting for their lights to arrive.

My Efest 14500 is on the way and I chose to give the LG ICR18650HE4 a try so ordered a couple of those too.
I have a box full of other 18650’s harvested from laptop batteries but wanted to make sure I had the right battery for the job!

What s/n did you get db custom?

Dale that set must be something that you about ready to throw in the trash, just send it over to me and I will put it in my trash can so it wont take up room in yours :bigsmile:

Just joking, anxiously awaiting mine now, amazing how bright that little x5 is though huh?

Here is the breakdown on what is left in stock. Wow…people really helped with the lack of 3B tints:

48 Boxed SS/Cu sets left:
4 x 1A and 44 x 3B

11 No Box SS/Cu sets left:
11 x 1A and 61 x 3B

PLENTY of Aluminum sets still available. No need for a reservation since 400 sets were produced. Aluminum set GB code: 3aeb2e

Thsnks,
krono
(Updated in OP)

good idea!!!

DHL arrived.

I haven’t had time to test everything, but I can at least share a few observations / measurements:

  • The firmware is the Oct2015 version. So, 8 normal mode groups and no “special” groups.
  • The medium-press time is longer than expected. This could be improved by using a more-resistive resistor in the tailcap, I think. There’s not much to be done about it in code though, since the OTC is already at the edge of its measurable range.
  • The tailcap looks brighter than the samples, with a more intense electric blue color instead of soft pink-blue, and is lighted only on one side instead of both sides.
  • Despite looking brighter, the standby current is exactly as expected (lower than the initial samples) :
    • 0.60mA at 4.07V
    • 0.48mA at 3.79V
    • 0.23mA at 3.14V
  • So, I expect the standby time would be roughly:
    • 50+ days on a 600mAh 14500 cell
    • 72+ days on a 840mAh 14500 cell
    • 7+ months on a 2500mAh 18650 cell
    • 10+ months on a 3500mAh 18650 cell
  • The voltage readout is a bit high as expected: (already fixed in the Jan2016 code)
    • My X6 reports 4.2V for a 4.07V cell, so ~0.13V high.
    • My X5 reports 3.9V or a 3.79V cell, so ~0.11V high.
  • Accessories (per light) include:
    • Pocket clip, engraved with X5 or X6, not attached by default.
    • Spare black boot.
    • Spare slightly-pink clear boot. (the default looks slightly blue)
    • Extra O-ring.
    • Lanyard with a slidey-lockey part and a bead and a quick-detach piece.
  • The X6 reflector seems to be slightly improved, again. Slightly tighter hotspot and a slightly smaller hole at the base.
  • The MCPCB finally says “KRONOS” instead of “ALEX WELLS”.
  • The tail PCB changed a bit since the first samples. I don’t know if this has any functional impact, but I haven’t noticed any.
  • The springs at both ends seem to handle the load pretty well, and I see none of the high-amp issues which caused delays earlier.
  • Everything is shinier and more polished than even the final samples.
  • The box is the nicest box I’ve ever had. Not really sure what to do with it, but it’s pretty.
  • To my surprise, the serial numbers (under “KRONOS”) actually look pretty nice.

Things I’ll probably change on my personal units:

  • Possibly an extra LED in the tailcap for more even illumination.
  • Possibly a different resistor in the tailcap for lower brightness and longer standby time.
  • Newer firmware, after I write some: I don’t really care about the config options so I can remove those and add a bunch more blinky modes instead. :slight_smile:

I tried to take pictures of the lighted tailcaps, but low-end digital cameras simply can’t capture pure electric shades of blue like this. The images don’t look even close to how it appears in real life.

Now I can finally fix up the earlier samples, which need new springs (the early sample springs sucked) and drivers (I broke most of the drivers during testing) and emitters (all samples were 1A tint, and I damaged two during thermal regulation tests).

Overall I can’t complain much. The hosts turned out awesome and most things are reasonably close to where we were aiming. Not bad considering that it is, in many ways, the first of its kind.