Noctigon K1 info / review

Thanks for your reply TK, any info on the mcpcb size?

Not sure, but it’s probably the 20mm MCPCB Hank sells with a White Flat installed. It couldn’t be a 16mm MCPCB because the reflector is too wide at the base, but 20mm seems barely big enough… and Hank doesn’t sell a larger one.

I’m hoping to avoid taking my reflector out, since the focus is nearly perfect and I don’t want to mess it up. I’ve made that mistake before… (probably not a big risk though, since it has a good centering gasket)

To me it looks like tiny White was soldered on a 3535 MCPCB...or am i mistaken? If so, why nit choosing L4P or even KD’s MCPCB?

It’s 32mm, specially made 3030 footprint for the W1/W2

Nice Hank, will you use this one mcpcb for 3535 footprint?

Thx Hank!

Nope, K1 uses specially made DTP, with both 3030 and 3535 footprint.

I already have a W30 which pretty much satisfies my desire for a pencil-beam super thrower, but I am very interested in the XHP35 version of the K1. I wish more lights were available with efficient constant-current boost drivers.

Is the XHP35 HI officially announced, or Hank commented anything?

Nice! I do believe I have a 32mm XM MCPCB on hand, so the SST-40 in 4750(ish)K is looking better all the time! :smiley: 5A is plenty for it and will maintain the run time values nicely. Once again though, we’ll see. I like to let the light and parts remain open, not decide too early what to do with them, wait for the light to be in-hand and get a feel for what would work best. Keeps it artistic. lol

I am also considerig using the XM-L2 HI Cri 3000K emitter with Maxtoch 31,5x 1,6mm DTP MCPCB. Hi cri sustainable throw of big led :D.
This light has a nice potencial for a lot of kind of modding with regulated or even boost drivers.

I have that emitter from KD. It is not 7A3 tint bin for sure. It’s very yellowish (DUV is very positive)

I can confirm its yellowness. KD’s first batch of these leds were great, but then this yellow batch came…

How do you know it’s high CRI?

I was just about ready to pull the trigger on an Acebeam T27. Perhaps I should get this instead!

Two very different animals. Even at low levels the K1 can produce the same intensity as the T27 at turbo, unsustained mode. However the T27 is all around more usable, with lot more lumens being lay in front of you, and for close tasks the T27 can actually illuminate more than just a tiny spot.

The K1 is a very specialized tool and the T27 can be used for everyday tasks to some extend.

K1 uses linear driver, not so efficient vs boost driver found in the T27. The emitter choice is also less efficient making the overall Lm/W or Lumen-hours differ.

I thought the blf gt makes about 1mcd how does this out throw it at Max 650kcd ? Or did I read it wrong

The total throw on the K1 is about half as much as the GT (half the candelas, two thirds as much distance). However, throwiness is measured more as a ratio of the amount of throw divided by the amount of lumens. This quantifies the overall beam shape, like how wide or narrow it is. The K1 has a slightly throwier (narrower) beam than the GT… which is pretty impressive considering it’s only a fifth the size (~2 kg vs ~0.4 kg).

The beams look pretty similar but the GT goes a couple steps higher than the K1. So the GT throws farther and can run for a lot longer, but at the cost of being much bigger and more expensive.

Ok I understand now I have a few lights with white flats the beam is pretty amazing