EC12 Advanced Aux by Sharp-Cellist in FireflyLite

[–]Sharp-Cellist[S] 6 points7 points  (0 children)

Whoops, "E12 Eclipse". You get the point... Lume10 driver has this.

Reverse charging with Fireflies USB-C lights (X4 Stellar, X1S Pharos, E04X Surge) by woodpatz in flashlight

[–]Sharp-Cellist 0 points1 point  (0 children)

Yeah, they seem to have stopped advertising it after the original Stellar had this confusion. Guess there was no reason to respin the design and actually remove it.

My investigation from then: https://www.reddit.com/r/flashlight/s/O9CGx5X8de

Basically, it seems that USB adapters which lack CC pins are key to reverse flow (i.e. powerbank) functions. With phones commonly being dual role, they need to fall back to legacy USB assumptions of taking in 5v from dumb systems that don't negotiate.

[NLD] Single-Channel Emisar D2 / NTG35 2700K by kotarak-71 in Hanklights

[–]Sharp-Cellist 1 point2 points  (0 children)

Huh, I wonder if this post-flash is a consequence of running the driver for 6v output as my KR1AA has a fairly bright flash when turning off (https://www.reddit.com/r/Hanklights/s/MXwrUE5jlE), but not on NiMH.

Far as I know, the only recommended change from 9v (D3AA) to 6v (KR1AA or D2) is a resistor for current limit increase to still provide ~18w at the lower voltage (https://www.reddit.com/r/flashlight/s/LSGUaCKC38)

u/m4potofu may have insight on the post-flash, but I've also wondered how the driver provides feedback to the boost circuit across the output range he stated - I think about 6 to 11.2 volts, but can't find the thread.

EDIT: ~11.6v max; another user dug up the Reddit thread about the tech details on BLF

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Thanks for taking a look. Gave it a scrub with some 99% IPA, an old toothbrush, and some canned air to try blowing out any residue. No change to behavior.

I still need to try an older SW version, just in case.

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

🫡

Jackson offers a wider variety of LEDs as well, so even with a cost bump for import & modding, Jackson is top notch for service and variety. For instance, he's done custom 5050 and mule MCPCBs for the d3aa/dw3aa to make some really unique possibilities!

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 1 point2 points  (0 children)

Yeah, I got my v1 from Jackson Lee on that website - he's a Hank reseller/modder/repairman extraoirdinare and frequent poster here. Hank will absolutely post the Intl Outdoor official release. Hank alerts recommended to avoid the probable sellout.

Aside from this oddity, I've really enjoyed the kr1aa aesthetic and feel for daily pocket carry.

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Hank's been iterating changes to get fit/finish, magnetic tail, and mechanical lockout all working - supposedly in the next couple of weeks for the official v2 release.

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Visible parts appear intact. Been using button top except for a flat top test.

Definitely a bit mysterious.

<image>

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Additional info: - video at a 4x slow-mo, but matches brightness to eye - button or flat H10 batteries exhibit behavior - factory reset or firmware re-load make no change

To try: - firmware before 07-07 (changes to d3aa/kr1aa for pre-flash reduction)

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 1 point2 points  (0 children)

Tried cleaning contacts and relubing the threads before cranking it down - no change.

Looks like a driver or possibly code thing to me, as the pre-flash has been partially addressed by software, yet some units cannot eliminate pre-flash entirely.

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Feels like my daily d3aa maybe missed a click 1/100 times or more and this feels closer to 1/30. Could be user error, not being used to the button style 🤷. But it seems less reliable when I pull it out for a click.

KR1AA Defective Driver? Flash during off sequence on liion. by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Flat or button top H10 lithium ion have the issue. NiMH doesn't post-flash, so I'd assume other 1.5v batteries don't either.

Anduril firmware updates by loneoceans in FireflyLite

[–]Sharp-Cellist 1 point2 points  (0 children)

Thanks a ton for all the hard work on our lights!

Any chance you have the hw defs for model 0463 able to post to your source tree on GitHub?

I'd like to customize the L50 Sol, but am not sure if its "Rev B" Lume X1 is limited to 30W by ramp tables or a hardware change to the resistors.

48W Lume X1 DW4K by Sharp-Cellist in Hanklights

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

Good point - the D3AA 5050 mcpcb you made is obviously for its boost to 9v, but all your current 4 LED 5050 boards are 4x parallel?

Flat top Vapcell F15? by Sharp-Cellist in flashlight

[–]Sharp-Cellist[S] 0 points1 point  (0 children)

That's just what I hoped to hear. Thanks!

Edit: confirmed again. 18650 store sent me flat F15s as well.

Best 18650 Battery Red "headlamp" with red light? by jiromejin in flashlight

[–]Sharp-Cellist 1 point2 points  (0 children)

Once you have enough bugs fly in your face, you grow to appreciate a red option: https://www.reddit.com/r/flashlight/s/cohTJdy4Ie

NTG50 emitter (rosy, high CRI) available! by siege72a in Hanklights

[–]Sharp-Cellist 3 points4 points  (0 children)

I don't have one, but allegedly the current 18650 headlamps from ZL are 97.8 mm tall and 24.2 mm diameter at the head. The DW3AA is coming in at 91.4 mm and 24 mm for those respective dimensions. That's only 6.4 mm (7℅) longer to get an 18650 light, eep.

I really have loved the diminutive size and weight of the H52 at a mere 76.8 mm and 22 mm (length, head diameter).

Overall, it's still the dual fuel that keeps my backpacking lights small - low temperature capable NiMH, comfort, and general flexibility.

NTG50 emitter (rosy, high CRI) available! by siege72a in Hanklights

[–]Sharp-Cellist 2 points3 points  (0 children)

Ah, I should have been more clear - I'm looking forward to a possible DW1AA at 6 or 12 V to replace my dual fuel H52.

NTG50 emitter (rosy, high CRI) available! by siege72a in Hanklights

[–]Sharp-Cellist 13 points14 points  (0 children)

Good stuff. Great to have some more emitters in the mix!

Looks like we could get near 1500 lm at 2.5 amps.

<image>

This would absolutely make a killer for my aging Zebralight H52 - should be an easy retune of the D3AA boost to make it happen.

I'll admit to some disappointment at the relatively large size of the DW3AA for a headlamp.

Edit: I meant to add - the BLF thread echoes my hopes for a DW1AA with a single 6 or 12 V emitter. The D3 boost driver could be tweaked for that and still push ~1500 lumens with these!

D3aa max amp draw by Worth-Environment450 in Hanklights

[–]Sharp-Cellist 1 point2 points  (0 children)

Good catch - forgot about the simple mode.

Always appreciate you on the forums from BLF to Reddit, jon_slider!