Noctigon KR1vn - Highest Performance 18650 Compact Thrower R

Patriot

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I received my KR1vn today in "gray" with HC bezel and clip. It's a fantastic little light with great form factor. Thanks Vinh, for remembering both batteries, I really appreciated the perfect order! The performance from the 18650 actually surprised and took me back a bit. I'll be comparing it to the D4Svn Supercharged, once it's fully dark. I didn't realize that the front of the bezel actually tapers in more narrowly at the front but I think this is a really nice touch compared to a straight taper bezel. Also, I can see why Vinh referred to this color as navy, because to my eyes, there's definitely dark blue in there and not just gray. Since I have a Cyan D4Svn, I'm glad that I got the navy grey!

Also, I was a little worried about the thermal settings based on what some others have said and so I actually planned on setting the thermal parameters to max. As is turns out, it ran for over 30 seconds without throttling back, starting at 65F, so I think I'm just going to leave the settings as is. That's more than I could have asked for from a SBT90, in a smallish light, running on a 18650.

If you ever wanted a practically pocketable D4Svn, I think you'll love the KR1!

I'll try to post some pics in the next few days.
 

b8llzblue

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Feb 10, 2014
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Patriot is absolutely right. If your wanting something to replace your d4svn in a more pocketable size, the kr1vn is it! I love my d4svn but it’s kinda chubby and heavy. The kr1vn does the exact same performance but in a lighter and smaller form. However, the d4svn has a better hotspot and beam and 100 more lumens. I still love my d4svn for a general walking light because of the side switch. The kr1vn is more of a edc because of the rear switch.
 

Patriot

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b8llzblue, I completely agree with everything you stated about the form factor. Like you, I still love the D4Svn it's just really neat to get similar performance from a stubby 6P-ish form factor. I sometimes used my D4Svn has a walking or a backpack light at work, but never an EDC for obvious reasons like, fatness, weight, and lack of pocket clip. The D4Svn has a smoother beam as well.

Although I haven't yet compared lumens or throw with the meters, I have a power line tower that's 316 yards down the street, that I use to compare lights by eye. It's handy because I only have to walk from my front door to the street. Oddly enough, I seems to me that the KR1vn is illuminating that tower slightly more than the D4Svn Super. The KR1vn is supposed to be about 8Kcd behind the D4Svn but it's not, at least in my two examples. I think the difference is enough that it will show in beamshots, so I'll try to get out and do that, perhaps tomorrow.

One other thing, the tint is noticeable warmer from the SBT-90 vs the W2, something I consider a bonus.
 

Patriot

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KR1vn with modified/bored Novatac/HDS pocket clip.
cOVJJUL.jpg


Comparison of old goofy clip (left) vs. the slim, useful perfection of the Novatac.
3feYChN.jpg


As "beefy" as we say the KR1 is for a 18650 light, it's still only 5.7oz w/cell, compared to 8.7oz w/cell for the D4S.
2m4Rb2d.jpg


It occurred to my just now, that I probably should have included the Emisar D1, being an old throw standard for the 34mm head class.
7tOx8Rw.jpg
 

Patriot

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Output, Light box results:

D4Svn Super 5150L
KR1vn delens 4860L


Output, Light Tube results:


D4Svn Super 5050L
KR1vn delens 4975L


Throw measurement @ 10m


D4Svn super 112Kcd
KR1vn delens 121Kcd (beam center, edges of hotspot might be slightly higher)


Other considerations.

The D4Svn Super has a near perfect beam center, with only slight flower pedal-ing in the spill and a pure white tint. It's beam is very clean in all respects.
Stout and chunky at 8.3oz. (235g) w/cell
106mm long
39mm at the bezel
32.5mm body
35mm tailcap
42mm widest point of the head, from the raised switch area - diagonal to the opposite side of the head. (easy to overlook this dimension, but revealing)

The KR1vn delens has some ultra mild donut-ing in the hot spot, some oblong-ing at the edges of the hotspot, due the the rectangle structure of the LED and support wires. These imperfections go unnoticed in utility but are visible if studied on a white wall. 400-500K warmer tint than the D4S. I personally love 4500-5000k tint!
Stout for a 18650 but noticeably smaller than the D4S. 5.3oz. (150g) w/cell
110mm long (+4mm)
34mm at the tapering bezel front (-5mm)
24mm at the body (waist) (-8.5mm)
28mm widest section of tailcap (-7mm)
35mm widest point of the head (-7mm)
 
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Patriot

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Really enjoying this light. Such impressive performance for it's size. It's hard to believe this is powered by an 18650..

75 yards to tower
uC1kAs2h.jpg


Same distance, 2X iphone 11
Updi2Ngh.jpg
 

vinhnguyen54

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Sep 14, 2010
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KR1vn.1 W1.1 6500K 750L, 135Kcd, 735m

Much less heat
Excellent performance and beam
A new fav
 

Patriot

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Hi Patriot! I really like your power tower beam shot:thumbsup:

Thanks man! The best part is that it was easy, no tripod or anything. Just snapped it on a night walk.



Would be nice to see the d4s beam shot side by side

Great idea. I think I can do that tomorrow night. Hopefully that little extra performance can be captured from the KR1vn. Shinning them both at the far powerline tower by my house, I think the pictures will show the extra throw. The beams are very similar in many ways, with the main difference being much less spill from the D4S.
 

SKV89

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Dec 10, 2017
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The KR1vn90 deserves to be one of your best sellers. The performance is freaking amazing. The output and throw I measured is better than anything I've measured for that size even if it only last for seconds. Such a fun little light!
 

vinhnguyen54

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KR1vn90 finally available in Cyan. 2 in stock. :)


20210819_111504 2.jpg
 

Patriot

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One of my newest and wanted to share. Credit to Vinh for agreeing to try PHC on the KR1. Different ti grade, heat colored a little differently but I like how it came out. Thanks Vinh.

AKu5vFc.jpg
 

fwafwow

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Sep 19, 2021
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Metro Atlanta
Ok - I was pretty much convinced already after hearing back from Vinh in emails and in response to my post, but now this is going to be my first SL. But now I just need to figure out how to keep it to one, two, or three more...
 

richbuff

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Me too. My KR1vn90 is one of my most exhilarating lights. Non-flashies are amazed at what it does per size. I am amazed at the amount of power and throw this screamer has. KR1 90vn.jpg
 

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