Noctigon K1 info / review

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zak.wilson
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I won’t order W1. I find cool white throwers have more visible backscatter, I don’t find ultra-tiny hotspots all that useful, I’m tired of linear drivers, and I haven’t yet found a light that throws far enough to make me stop caring about CRI.

I’m waiting to see how the XHP35 HI model performs, especially if Hank sources some of the 80 CRI Easywhites, with which I’ve had very good results in other lights in 4000K and 4500K. Barring that, I’d consider SST-20.

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Hikelite
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zak.wilson wrote:
I’m tired of linear drivers

Yet none had any linear driver until K1.

Pavlo
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Hikelite wrote:
zak.wilson wrote:
I’m tired of linear drivers

Yet none had any linear driver until K1.

All of the Emisar lights use Linear + Fet drivers. The Linear part of the driver is responsible for the regulation which many of us seek in a light.
I believe Zak’s comment was extending beyond the Noctigon line of products, and I too agree, waiting to see more buck and boost drivers and limit my purchases to these flashlights as well.

Yokiamy
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zak.wilson wrote:
I won’t order W1. I find cool white throwers have more visible backscatter, I don’t find ultra-tiny hotspots all that useful, I’m tired of linear drivers, and I haven’t yet found a light that throws far enough to make me stop caring about CRI.

I’m waiting to see how the XHP35 HI model performs, especially if Hank sources some of the 80 CRI Easywhites, with which I’ve had very good results in other lights in 4000K and 4500K. Barring that, I’d consider SST-20.

And you are absolutely right!

Waiting for the XHP35 version as well…

mili111
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What can we expect from the XHP35? More lumen and less throw than XPL-Hi? Maybe alike 4000K SST-20?

Agro
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Compared to XP-L HI – more lumens and similar throw.

mili111
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Agro wrote:
Compared to XP-L HI – more lumens and similar throw.

So what would be the reason to get the XPL-hi? No tintshift?

Agro
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XP-L HI doesn’t have a tint shift either.
The reason would be more lumens and therefore wider beam.

mili111
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Agro wrote:
XP-L HI doesn’t have a tint shift either. The reason would be more lumens and therefore wider beam.

Yes thats what i said Big Smile

I meant: what i the reason to take the XPL-Hi over the XHP35? I don´t see any. If throw and tintshift is comparable and XHP35 makes more lumen, i would always choose XHP35.

Agro
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Ah, right. Smile
XHP35 HI doesn’t have a tint shift either. I guess the main reason would be price.
ADDED:
Maybe tint selection as well. Maybe longer runtime / turbo time? XP-L will surely not need a thermal stepdown. XHP35 HI might.

ToyKeeper
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The no-PWM linear driver in the K1 should be a bit more efficient than a 7135-based PWM driver. If the 7135 design has multiple channels though, it’s only a small difference.

A direct-drive FET is also frequently a nice addition, to increase the maximum brightness on lights which can actually handle the extra power. It’s mostly just for turbo use though.

Compared to a linear driver or a linear-plus-direct-drive hybrid driver, a boost driver typically is more efficient in the medium modes. However, it’s usually also not able to go as bright as a FET turbo, and tends to be less efficient on really low modes too. So, not as good for moon or turbo, but usually more efficient at most of the levels in-between.

There are some known cases where a boost or buck driver ended up being less efficient, like how the Lux-RC 371D driver is ~30% less efficient (even in medium modes) than a simple amc7135 driver… but that doesn’t seem to be the common case.

Yokiamy
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mili111 wrote:
Agro wrote:
XP-L HI doesn’t have a tint shift either. The reason would be more lumens and therefore wider beam.

Yes thats what i said Big Smile

I meant: what i the reason to take the XPL-Hi over the XHP35? I don´t see any. If throw and tintshift is comparable and XHP35 makes more lumen, i would always choose XHP35.

Yes, the difference is the driver, since it’s 12V the driver needs additional components which makes it more expensive than a regular 4V driver.
The XPL-Hi and SST20/40 are easier to drive, that will probably be the reason they are already available.

But the difefrence between SST40 and XHP35 probably won’t be very much, apart from the fact that the XHP35 HI will throw farther since it’s domeless and does not experience the bad tint of SST’s

A wider beam (The Osram throws like hell, but the hotspot is very tiny) a better tint, more efficiency, more usability, that’s my main reason to wait for the XHP35

djozz
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Hikelite wrote:
zak.wilson wrote:
I’m tired of linear drivers

Yet none had any linear driver until K1.

I’m a huge fan of lineair drivers, simple, cheap, small, do the job more than adequate, very robust/reliable, efficiency is fine. And although it has not been proven to occur often, I fear for voltage spikes coming from drivers with inductors (I had a precious 90CRI XHP50.2 killed by a KD boost driver).

Hikelite
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Pavlo wrote:
Hikelite wrote:
zak.wilson wrote:
I’m tired of linear drivers

Yet none had any linear driver until K1.

All of the Emisar lights use Linear + Fet drivers. The Linear part of the driver is responsible for the regulation which many of us seek in a light.

Yeah linear up to 1Amps in D4, over that is direct drive in D4, but not 5A linear or 8A linear drivers, quite a massive difference.

Souichirou
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So, out of curiosity I noticed a fair amount of people on r/flashlight have been mentioning getting shipping notice for the lights going out as early as the 30th of November as well as receiving the light in the mail. It maybe my paranoia but I also placed an order once the K1 dropped on hank’s site and my order and payment has been confirmed almost 12 days ago by paypal….

Am I just overthinking things or have I been overlooked or missed in the shipping of the light ?

zak.wilson
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90 CRI XHP50Bs are precious? Arrow has them in single quantities (for some CCTs). Arrow doesn’t have free shipping with no minimum anymore, but if you need $50 worth of stuff….

I have lots of lights with linear drivers. They work fine, but they contribute a lot of heat, which has a significant impact on sustainable output for a lot of the smaller EDC lights they’re used in. The K1, with its large surface area, thermal mass, and battery compared to say, an FW3A is not a terrible application for a linear driver… I’m just tired of them.

ToyKeeper wrote:
Compared to a linear driver or a linear-plus-direct-drive hybrid driver, a boost driver [snip] tends to be less efficient on really low modes too.

I’ve observed that with some lights as well, but Zebralight seems to do it well with one test seeing 319 days for an H600Fd III on its lowest mode and another still going with an SC62w at 339 days. I’m not expert enough on the subject to know why others fall short, but low modes aren’t a priority for me for a thrower. If Noctigon made a boost driver EDC light, on the other hand…. Maybe I shouldn’t have skipped that Wuben TO50R HC group buy.

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SKV89
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djozz wrote:
I had a precious 90CRI XHP50.2 killed by a KD boost driver.

What CCT is it? Did you measure the tint? Very interested in such an emitter. LOL

micknatt
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Souichirou wrote:
So, out of curiosity I noticed a fair amount of people on r/flashlight have been mentioning getting shipping notice for the lights going out as early as the 30th of November as well as receiving the light in the mail. It maybe my paranoia but I also placed an order once the K1 dropped on hank’s site and my order and payment has been confirmed almost 12 days ago by paypal….

Am I just overthinking things or have I been overlooked or missed in the shipping of the light ?


I ordered my K1 in black with W1 on November 29, 2019 03:29:04 EST. It is still processing on my account. I do not know when will mine ship out, but on Hank’s site said ship before December 15th.
zak.wilson
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For a subjective impression, I have a 90 CRI XHP50B in 5000K in an Armytek Wizard Pro. The honeycomb TIR means it doesn’t have the usual tint shift issues, and otherwise the tint looks a lot like a 5000K LH351D (slightly green, but not bad).

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junkyardbiker
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Mine shipped on the 7th of December

Lurking flashaholic, Ive bought all my flashlights through lurking here, BLF A6, Sofirn C8F, Soforn Q8, Emisar D4, and a few not so budget lights but I mod them all the same! Been waiting for the FW3A to come out for years now.......

justanotherguy
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I want whatever is the throw-iest version… White flat 1 I suppose

SKV89
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zak.wilson wrote:
For a subjective impression, I have a 90 CRI XHP50B in 5000K in an Armytek Wizard Pro. The honeycomb TIR means it doesn’t have the usual tint shift issues, and otherwise the tint looks a lot like a 5000K LH351D (slightly green, but not bad).

Aww man. I was hoping for a miracle rosy hi cri emitter. Sigh they are so hard to come by. The XHP50.2 4000K in my Olight H2R Pro was one of the nicest, rosiest 5D emitters I’ve ever seen and it measures 77CRI and a -0.005 DUV. A subsequent H2R Pro I bought had disgustingly green tint. I would like to know how Olight procured the original batch of XHP50.2 as I would love to buy a bunch of those emitters.

zak.wilson
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SKV89 wrote:
Aww man. I was hoping for a miracle rosy hi cri emitter.

Are you looking for the Nichia 144A?

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MRsDNF
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I’ve only just found this thread. Terrific review on another fine light from Hank. Thanks TK. Thumbs Up

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

TexasToasted
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Ordered K1, W1, Dark Grey, Dec 2.
Received shipping email from Hank, Dec 6.
Tracking shows the package really was shipped Dec 6, unlike so many Aliexpress vendors, or Banggood, or Gearbest…..

virencelights
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buck/buck-boost please

Virence Custom Built; ArmyTek Viking Pro E21A 6500k 9080 Quadtrix, Bob Sir Bob Custom Built Zebralight SC64c 219b 4500k 9080.
Jetbeam AAA 9080 E21A 9080 5700k, Jetbeam AAA Nichia HCRI Red Led.

Hollybrook
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My interest is much different from most of the comments above. I see no point in taking an excellent thrower and negating the strong points with emitters that generate a wider hotspot and more illumination off axis. I don’t have it yet, but I bought the W1 version and expect it to do exactly what I want.

And yes, I do have a practical use for this light — I boat at night and want a light to identify markers in the water at long distances without adversely affecting my night vision by lighting up the white bow of the boat. This is the perfect light for this purpose — good price point and small form factor! The ability to charge the battery without removing is helpful if I need a quick charge while at the helm.

Would I like it in a warmer tint? Sure, but not at the expense of a tight beam and long throw.

FWIW, ordered K1 W1 in dark gray on 12/1 and do not have a shipping notice yet.

DB Custom
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Spill is very soft, I have several lights with White Flats in lesser sized reflectors and spill is among the least obtrusive of any light I own. (all 250+ of em!) Should work great for you Hollybrook.

Lights are supposed to ship by Dec 15th as I understand it from the site, I ordered on the 29th and of course it hasn’t shipped yet. Looking forward to it. Big Smile

Agro
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DB Custom wrote:
Spill is very soft, I have several lights with White Flats in lesser sized reflectors and spill is among the least obtrusive of any light I own. (all 250+ of em!) Should work great for you Hollybrook.

Dale…maybe try some aspheric… Silly
DB Custom
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Have several aspheric lensed lights. Wink

Also have a laser MaxToch.

And a build I will attack sooner or later will use a 200mm aspheric.

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