Acebeam K75

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seery
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Acebeam K75

XHP35 HI
2,600 lumens
1,200,000 candela
2,000 meter beam distance
4× 18650 batteries
150mm reflector

ACEBEAM K75

Edited by: seery on 08/15/2019 - 09:14
Enderman
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That BLF GT project really inspired manufacturers to build giant throwers huh…

2100
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Why don’t they just go all the way to a 180 or 200mm.

That said, i’m waiting to see if i can get the Mateminco (35 or 70.2) at usd 100 or maybe just a few dollars above that….11/11.

twisted raven
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Can’t wait to put a boost hx in it .

mrheosuper
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Enderman wrote:
That BLF GT project really inspired manufacturers to build giant throwers huh…

Blf gt is a risky project, it envolves lots of effort, money, time, but the demands is Unknow

I think if BLF community didn’t help in designing GT, lumintop won’t make it.

Forgot my pen

SKV89
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I have a feeling Acebeam is rating their lights based on emitter lumens and not OTF lumens. Don’t think it is possible to make 2,600 OTF lumens with XHP35 HI

Enderman
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mrheosuper wrote:

Blf gt is a risky project, it envolves lots of effort, money, time, but the demands is Unknow

I think if BLF community didn’t help in designing GT, lumintop won’t make it.


BLF was who came up with the idea and asked manufacturers to build it Big Smile Lumintop or all the others did not even think about building something like this, these giant thrower flashlights wouldn’t even exist had it not been for BLF.
Theodore41
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Enderman wrote:
That BLF GT project really inspired manufacturers to build giant throwers huh…

They understood that there are many interested for bigger lights.
Enderman
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Theodore41 wrote:

They understood that there are many interested for bigger lights.

Yup, and that people are willing to pay for them.
desmondkun
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If I have one, I’ll break it’s lens within a week.

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Theodore41
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I want one with 70.2 in it. Big Smile

Dioda
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Next level: Imalent with 300mm reflector Facepalm

Theodore41
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I think that most of us want something light that so as to be fully satisfied. Big Smile https://www.google.com/search?q=antiaircraft++lights&client=firefox-b&tb...

Nicolaas
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I wonder about the specs.
BLF has 120mm reflector and does 1.2Mcd so the Acebeam with 150mm reflector. should be able to do a lot better……more like 2.1Mcd

Dioda
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I wonder about the ratio of people who buy it becuse they really need it versus people who buy it to satisfy their inner child Big Smile

Theodore41
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Dioda wrote:
I wonder about the ratio of people who buy it becuse they really need it versus people who buy it to satisfy their inner child Big Smile

1:1000? Big Smile
twisted raven
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That ratio is 0.

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‘Need’ is a tricky word. Need to show off, need to giggle! Both good reasons in my book.

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yclongthrow
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I’m guessing the 150 mm should be doing better than 1,200,000?

teacher
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Dioda wrote:
I wonder about the ratio of people who buy it becuse they really need it versus people who buy it to satisfy their inner child Big Smile

I’d say “Inner Child” wins by a sweeping landslide majority. Thumbs Up

I think very, very, very few people actually ‘need’ this light…. much less have a legitimate use for it (besides play of course). Big Smile .. Big Smile

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Nicolaas
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I certainly don’t need one but…….I probably will buy one Big Smile

To modd it to reach over 2,5Mcd, of course.

Cheers,
Nico

mortuus
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SKV89 wrote:
I have a feeling Acebeam is rating their lights based on emitter lumens and not OTF lumens. Don’t think it is possible to make 2,600 OTF lumens with XHP35 HI

I dont like this, it should be the actual lumens and nothing else, iknow astrolux can make on theirs mf02 3000 lumens claims but neither comes close to that. but still nice to see a 150mm head… whats next 200 ? Big Smile

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Nicolaas
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Being at home I took my excel calculation sheet and came up with these – not overly optimistic – numbers:

Optimal 150mm reflector, 95% effective
Led 100% centered and focussed
Lens 96% transmission

XHP35 HI producing 140 cd per square mm = 1,86 Mcd
XP-L HI V3 producing 165 cd per square mm = 2,34 Mcd
Oslon Black Flat producing 245 cd per square mm = 3,47 Mcd

All in theory of course, but my conclusion is that the K75 should do a hell of a lot better with an XHP35 HI getting
decent power.
1,2 Mcd makes no sense with a reflector that big.

Cheers,
Nico

Theodore41
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Amen… Big Smile

Nicolaas
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Soooo……………………any news on this yet?

Petr J.
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jaynick
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Wow. This+extension tube is gonna be impressive with some mods.

Rusty Joe
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This looks absurd. That thing will be so head-heavy that it won’t be usable.

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seery
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Rusty Joe wrote:
This looks absurd. That thing will be so head-heavy that it won’t be usable.

My bet is it won’t be.

And that the balance point will be right in front of the [on/off] switch.

Fate0n3
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seery wrote:
Rusty Joe wrote:
This looks absurd. That thing will be so head-heavy that it won’t be usable.

My bet is it won’t be.

And that the balance point will be right in front of the [on/off] switch.

I would bet you are exactly right, I had read about people saying the Astrolux MF04/s was the same way. Looked very unbalanced and than once in the hand, felt balanced and didn’t fatigue the hand more than you would expect for a light of its size.

twisted raven
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It depends on how thick the aluminum housing is around the reflector. It doesn’t look like there’s much, aside from the cooling fins towards the bottom, but those aren’t a big solid chunk. The weight of the handle with its 4 batteries should offset it for the most part. However, I will admit something like the T21 in 2×18650 configuration is more comfortable and less of a hassle to hold than my TN40.

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