KC1 keychain light is available now


Aren't these FET ?

Constant current linear, like all the dual channel models

Hi, would you please let me know what other combinations you mean?

I received mine D1 B35AM 5000K couple days ago, with full battery it pulls 3.7A measured at the tailcap. For comparison, DM11 on level 140, pulls 4.05A.

So I guess we might assume that problem has been solved by Hank.

On a side note, the beam of B35AM 5000K looks almost perfect, very close to BBL, a bit below on medium level. It’s puzzling that B35AM 4000K in DM11 for higher current produces a bit less lux. For almost the same current SC64w HI produces even less lux and it has lower CRI. win-win :slight_smile:

Dear Hank,

you postet since these Post of me and DrDevil some new things, but not answered the question of the solution for B35AM. I think, it can not be difficult, to explain this thing, because many of your buyers have to handle this issue of your smoking B35AM in the first D1v2 …

Thanks a lot !

LitN

I think he means something like this, but in the switch. e.g. a pair of pink, a pair of warm white and a pair of ice blue

(Pic is a link)



Oh, well that's better, but how about a dual channel boost driver?
I would probably just mix the leds, on boost driver, then buying linear dual channel.

@LiteintheNite My D1 mini B35AM 4000K (first batch) pulls around 2.78A on the default max ramp (that's twice less, as on the TURBO), just letting you guys know.

Not enought space on the board for a dual channel boost driver.

Oh yes. My choice would probably be cyan/ice, magenta and amber…

Hi,

The RGB switch sounds super cool but I just have a few questions.

1.) Is it a fixed selection of colours that is constantly lit up with the option of high brightness, low brightness, blinking mode and off? or does it cycle through the colours like the auxiliary lights do on a D4V2, so you can make the switch blue for example and when you get bored of it you can change it to red?

2.) If you have to choose 6 colours for a fixed selection what colour options is there to choose from?

Many thanks.

Think of it like having D4V2 auxiliaries in a switch, with all of the same functions.
Blue, purple, red, yellow, green, light blue, white, are individual colors you can select, along with voltage indication, and having it cycle through the various colors.

Hello guys! It’s been quite some time since the boost driver was released. Does anyone have any real measurements of performance and sustained output between fet linear and new boost driver in Hanks 4x leds flashlights? Is the loss of performance worth it? I’ve seen posts on reddit claiming that the sustainable output is almost unchanged.

Tactical Grizzly made a direct comparison of the D4Sv2 linear and boost with CULPM1 LEDs : Emisar D4SV2 Review – Three Versions Compared! – Grizzly's Reviews

Thank you so much! I didn’t follow the r/flashlights as much over the summer and missed it!
Last question, has there been any hints of a new boost driver or even an updated D4 from Hank?
As far as I could figure out to fit a bigger inductor (which would be able to give up to 3A to the each LED) it only needs a few millimeters longer body of flashlight. Hank could get rid of this variety of drivers at once and get the perfect flashlight…

The D4V2 looks to achieve many of these things - with the optional boost driver.

The D4V2 looks to achieve many of these things - with the optional boost driver.
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Everything except its limit due to the small inductor is only 2A per led. That’s the only reason so many of us still have doubts about which version to take. The more practical or the hotrod toy.

How can I order the new kr4 boost driver?

On the order page, there’s a 12$ upgrade optio

Hey!
What if I order new D1 with FC-40 - what driver Hank will choose? I do not see option to add boost driver on the D1 flashlight page but I think it should be there or Im wrong?
And are fc-40 4000-4500k from Hank good bins? I’ve seen some fc-40 have a beautiful pink tint almost like nichia. That’s what I’d like to get with 4000k option. :innocent:

Btw am I right in assuming that the fc-40 will be more bright than the dd519a?

The quad-emitter lights can have the LED’s wired differently for different drivers, but that’s not possible with one emitter. So there are no user-selectable driver options for single emitter lights like D1(V2).

GT-FC40 is a 12V-only emitter so it has to come with a boost driver. The same is true for B35AM.

GT-FC40 in D1(V2) will produce about twice as many lumens as a dedomed 519A in a D1(V2).

FWIW I have not found any of the FC40’s I’ve tested (one in an E70, one in a KR1, one in a M21D, and eight in an X50) to have pink tint. They’ve all been neutral to slightly green tinted.

If you want a light from Hank with pink tint and a boost driver, get one of the quad emitter lights with dedomed 519A’s and the boost driver upgrade.