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

Wow. Good test
2 months is respectable, canā€™t imagine having these lights and not using them for so long :smiley:

Thanks, Joat. Great information, it also helps me decide on the resistor values of my own lighted tail mods :slight_smile:

That would be nice, but theyā€™re branded with Astrolux, not BLF/Kronos, and they do not come in a nice box. I think Iā€™ll keep pestering Banggood till they relent.

Good Luck

Iā€™d like to thank Neal from Banggood, for sending me a new code. My trust in Banggood stays true, at least for now.

good to hear :slight_smile:

I was here in post 7018 about an Astrolux SC (copper X5 clone) that stepped down in all modes and did other strange things. The problem was solved after a bridged connection on the driver was disconnected.

I now have a new Astrolux S3 (aluminum X5 clone) that is stepping down in all modes after 9 seconds. If the light has been resting, it takes 30 seconds for the first stepdown, then 9 seconds for subsequent ones. This occurs in ALL modes, not just turbo. Other functions work as expected.

  • UI is set to four modes, no moon, no memory, L to H, medium presses on.
  • With thermal management disabled, there are no stepdowns in any modes.
  • After a factory reset of settings, stepdowns occur again.

Unfortunately, I only did a quick check of the lightā€™s functionality out of the box before removing the bleeder resistor and tailcap LED and resistor. Iā€™m confident that I didnā€™t cause damage while I was in there.

Any ideas? I have looked at the driver board again and didnā€™t see anything obvious.

So it works in all modes and can enter and exit program mode but is stepping down too quickly? Connection problem? Weak switch? Wrong value on one of the voltage divider resistors?

G'Day goshdogit,

From memory, another member had the same problem (posted somewhere in this thread), & it was fixed by setting a new value/limit for the Thermal Calibration within configuration.

Best Regards,

George

Yes, the light functions normally besides stepping down in ALL modes after 9 seconds.

Retaining rings are tight. Smacking/shaking the light causes no issues. I tried the tailcap from the copper X5 clone and got the same results. I looked at the driver again and it has the same 4.7k and 22k SMD resistors as the copper light.

While attempting to set a new thermal protection value, the light seemed dim and did not get warm after 2 minutes.

I pulled the cell and itā€™s at 2.8V. It was at 3.6V two days ago. :person_facepalming: I hadnā€™t touched the light since then.

Remember, I had removed the bleeder resistor from the driver before verifying that this light worked properly. Iā€™m suspicious that I may have caused this issue, but I donā€™t see a bridge at the bleeder resistorā€™s pads and my DMM shows no continuity between them.

Iā€™ll swap in a Mountain Electronics driver with Bistro UI when my latest order arrives, and get photos of the questionable driver when I remove it.

Thank you both for your suggestions. Iā€™ll report back in a few days.

Tried to remove the driver retaining ring on my X6 yesterday, I can get it loose and it freely rotates 2/3 times before it binds up and wonā€™t undo any further.

Do I have to remove anything else in order to get driver retaining ring out? :question:

Thanks in advance

Nope, thereā€™s probably just a tiny chunk of aluminum, brass, or PCB caught in the threads. I had that problem with an X6.

Working the ring back and forth might help, otherwise you might just need to plow through the the obstruction. :stuck_out_tongue:

There is no need to remove anything else in order to get the driver retainer ring out. Try re-tightening it before trying again.

Also run the light on turbo so as to get it hot, & then try removing the driver retainer ring.

Best Regards,

George

I have the stepdown in all modes too, in at least two of my Kronos lights. Why would a wrong stepdown temperature cause stepdown in all modes instead of just turbo??
I solved it by just un-engaging the turbo-timer. It was not my favorite feature anyway.

Just got mine after waiting two months! Most notable is the fact I didnā€™t get a BLF-X5 but a Astrolux S3 instead. Not sure how I feel about that but I think the Astrolux is supposed to be a slight improvement so maybe itā€™s my lucky day?

Thanks, I will have another go next weekend.

Would a tiny bit of WD40 help? Iā€™ve been using some fairly fine needle-nose pliers, I think something else is going to fail before the ring is free :/. Going to invest in some Circlip pliers, might even make an adjustable retaining ring wrench by drilling holes and fitting pins into the sides of an adjustable wrenchā€¦

The ring may be below the end of the threads and failing to engage ā€” try holding it ā€˜upside downā€™ and trying to pull the ring a bit while turning it, if you can.

i ordered 3c lights early in the GB, then much later agreed to accept astrolux 3c lights, and they sent me astrolux 1a anyway. lotta problems with seller and maker in the last 2 GBs.

I tried the AL set coupon but now the price isnā€™t 50$ but 58,47$

Not trying to call you out personally, ZozzV6. But, I think this needs to be said. This group buy has been over for a very long time. Before that, it was in process for a very long time, then in production for a while, then in purchase/ship mode for quite a while, then in public code mode to finish off the remaining stock. What Iā€™m getting at is that anyone expecting to get a deal at this point has more than missed the boat. Theyā€™ve missed the whole planet. At this point, the pricing is set by normal everyday business practices.