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I recommend saying no to Covid vaccine. Listen to your soul.
I got 915m range at 4.2A, 700 lumens, and Convoy are using the 5A driver so it’ll do better.
I wonder why the rating is so low
Everyone should mention candela rating and not meters… ANSI standard? Well it kinda sucks… Mine 280 kcd light for me has usable 500-600 meters beam distance(depends on the night)… This is individual stuff. Cause there are areas with ultra dark nights where ansi measurements can actually pass. But it mostly won’t pass. So I don’t take only the beam distance as a relevant data… Candela rating tells much more about light so if candela rating is true and “right” by my personal experience I can estimate throw by my night conditions…, and if 140 kcd is true that is around 200-250m of usable light in mine area…
I got 915m range at 4.2A, 700 lumens, and Convoy are using the 5A driver so it’ll do better.
I wonder why the rating is so low
Everyone should mention candela rating and not meters… ANSI standard? Well it kinda sucks… Mine 280 kcd light for me has usable 500-600 meters beam distance(depends on the night)… This is individual stuff. Cause there are areas with ultra dark nights where ansi measurements can actually pass. But it mostly won’t pass. So I don’t take only the beam distance as a relevant data… Candela rating tells much more about light so if candela rating is true and “right” by my personal experience I can estimate throw by my night conditions…, and if 140 kcd is true that is around 200-250m of usable light in mine area…
They convert perfectly back and forth. Neither measurement tells you any more or less than the other. Just take 2/3 or 1/2 the FL1 throw based on how much intensity you want at a given range and there’s your real-world throw.
In fact candela ratings can be deceiving since it requires exponentially more to increase throw, whereas doubling FL1 throw from 100m to 200m will have the visual and practical difference you would expect.
I saw on the first comment they’re discontinuing the CULNM due to lack of sales. Does anyone even sell a light with the CULNMLED? Sadly my hands shake too much to do any sort of soldering or I would attempt it myself.
Everyone should mention candela rating and not meters... ANSI standard? Well it kinda sucks... … Candela rating tells much more about light so if candela rating is true and "right" by my personal experience I can estimate throw by my night conditions...
BurningPlayd0h wrote:
…
In fact candela ratings can be deceiving since it requires exponentially more to increase throw, …
Well I hear you both. I sort of lean to luminarium iaculator's perspective, as I also prefer a luminous intensity rating because effective throw depends on the ambient light intensity, and also on our expected over the target light intensity.
However I also understand throw is directly proportional to the square root of luminous intensity, which means there is no direct linear relationship between intensity (candela) and throw (meters).
I do not think that is deceiving, as I understand it. The same applies for anyone knowledgeable in the matter with a minimum of expertise and/or mental agility. This is key.
I could also seriously mess with the way luminous intensity is defined, but overall I guess the actual problems and reasons are often rooted in common people's stupidity and caused by smart people pledging to their uneducated wishes.
—
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I recommend saying no to Covid vaccine. Listen to your soul.
BTW, has anyone tested Boost HX already? How does the performance scale compared to CSLPM1.TG?
Simon Mao will put one in a L21A with an 8 A driver soon and share the results!
Eager to know the results, if they are any good i will certainly buy some parts
That size reflector should see close to 450kcd max with this emitter according to my estimates.. we’ll see what others get. I don’t think the 8A driver actually pushes 8A. If course without an output test done on these yet it’s hard to say how much is here on the table just with drive current. Also, I’m not sure how much time if any he put into optimizing focus. Does anyone else have experience with the 4040 gaskets? Are they as thick as the 3030s?
What’s the difference between CSLPM1 and CULPM1? Both are 2mm size emitters right?
~~~~
I wonder if the current batch of M21A now accepts the slightly wider 21700 batteries (eg. Lii-40A and others). The earlier M21A won’t fit the Lii-40A (or Lishen 21700)
What's the difference between CSLPM1 and CULPM1? Both are 2mm size emitters right? …
Footprint. CSLPM1 is 3030, whereas CULPM1 is 4040.
—
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I recommend saying no to Covid vaccine. Listen to your soul.
What’s the difference between CSLPM1 and CULPM1? Both are 2mm size emitters right?
~~~~
I wonder if the current batch of M21A now accepts the slightly wider 21700 batteries (eg. Lii-40A and others). The earlier M21A won’t fit the Lii-40A (or Lishen 21700)
oweban wrote:
from the convoy thread
so, the difference is 3030 footprint for cslpm1 vs 4040 footprint for culpm1
Exactly. The idea is that the larger footprint allows higher currents due to better heatsinking.
Osram’s datasheet says 6A, but since when did we use to stick with specs from datasheets?
We run cree LED’S on currents not even mentioned by Cree
Exactly. The idea is that the larger footprint allows higher currents due to better heatsinking. Osram's datasheet says 6A, …
All else being equal, I think the effective difference will be rather small.
—
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Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
Exactly. The idea is that the larger footprint allows higher currents due to better heatsinking.
Osram’s datasheet says 6A, …
All else being equal, I think the effective difference will be rather small.
I’m curious what the difference will be, since the surface area is 77,77% larger. (16mm instead of 9)
That means it can be abused a bit more (run higher currents) or sustain longer (better thermal dissipation/better performance)
When I say that the effective difference will be rather small, I am speaking about lumens or radiant flux, of course.
The 4040 footprint will handle higher current, but that extra (Vf × I) power will only partially turn into extra lumens or flux.
We'll see.
—
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
I wonder if the rather small amount of more efficiency on CULNM1.TG / CULPM1.TG will be advantageous if used in a multiemitter array, e.g. underneath a quad optic. I hope to seeing some flashlights using CULNM1.TG underneath a Carclo 10621 optic anytime soon. Maybe Hank (KR4/D4v2) or Sofirn (IF25A) can offer something like this. Acebeam is using CSLNM1.TG (White Flat 1) in their TK16/TK18 lights.
which one do you recommend?
I gave you an answer here.
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
Any new experiments with the CULPM1.TG ?
I found this on youtube, ( i dont understand a word from it)
Hmmm, he’s using a fet driver. That’ll be great if it can handle it
Texas Ace Lumen Tube calibrated with maukka lights
New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)
YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)
Simon (convoy store) has listed this new beauty C8+ with osram KW CSLNM1.TG 6500K https://www.aliexpress.com/item/1005001400455356.html
Max range: 748 meters (140kcd)
I got 915m range at 4.2A, 700 lumens, and Convoy are using the 5A driver so it’ll do better.
I wonder why the rating is so low
Texas Ace Lumen Tube calibrated with maukka lights
New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)
YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)
Everyone should mention candela rating and not meters… ANSI standard? Well it kinda sucks… Mine 280 kcd light for me has usable 500-600 meters beam distance(depends on the night)… This is individual stuff. Cause there are areas with ultra dark nights where ansi measurements can actually pass. But it mostly won’t pass. So I don’t take only the beam distance as a relevant data… Candela rating tells much more about light so if candela rating is true and “right” by my personal experience I can estimate throw by my night conditions…, and if 140 kcd is true that is around 200-250m of usable light in mine area…
They convert perfectly back and forth. Neither measurement tells you any more or less than the other. Just take 2/3 or 1/2 the FL1 throw based on how much intensity you want at a given range and there’s your real-world throw.
In fact candela ratings can be deceiving since it requires exponentially more to increase throw, whereas doubling FL1 throw from 100m to 200m will have the visual and practical difference you would expect.
I saw on the first comment they’re discontinuing the CULNM due to lack of sales. Does anyone even sell a light with the CULNM LED? Sadly my hands shake too much to do any sort of soldering or I would attempt it myself.
Well I hear you both. I sort of lean to luminarium iaculator's perspective, as I also prefer a luminous intensity rating because effective throw depends on the ambient light intensity, and also on our expected over the target light intensity.
However I also understand throw is directly proportional to the square root of luminous intensity, which means there is no direct linear relationship between intensity (candela) and throw (meters).
I do not think that is deceiving, as I understand it. The same applies for anyone knowledgeable in the matter with a minimum of expertise and/or mental agility. This is key.
I could also seriously mess with the way luminous intensity is defined, but overall I guess the actual problems and reasons are often rooted in common people's stupidity and caused by smart people pledging to their uneducated wishes.
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
BTW, has anyone tested Boost HX already? How does the performance scale compared to CSLPM1.TG?
I’m anxiously waiting for this, too. At the rate these are becoming available in good bins, budget LEP will be here
Simon Mao will put one in a L21A with an 8 A driver soon and share the results!
Eager to know the results, if they are any good i will certainly buy some parts
http://budgetlightforum.com/comment/1692738#comment-1692738
Simon listed 2 new 4040 DTP copper MCPCBs for osram KW CULPM1.TG, 16mm and 20mm.
16mm: https://www.aliexpress.com/item/1005001416992562.html
20mm: https://www.aliexpress.com/item/1005001417023203.html
Simon tested the CULPM1.TG on L21A got this result, it looks impressive
That size reflector should see close to 450kcd max with this emitter according to my estimates.. we’ll see what others get. I don’t think the 8A driver actually pushes 8A. If course without an output test done on these yet it’s hard to say how much is here on the table just with drive current. Also, I’m not sure how much time if any he put into optimizing focus. Does anyone else have experience with the 4040 gaskets? Are they as thick as the 3030s?
Simon Listed Convoy M21A with KW CSLPM1.TG 6A driver
4 & 12 modes // Black & Desert Tan body
https://www.aliexpress.com/item/1005001433292831.html
Nice, waiting for the CULPM1 version
What’s the difference between CSLPM1 and CULPM1? Both are 2mm size emitters right?
~~~~
I wonder if the current batch of M21A now accepts the slightly wider 21700 batteries (eg. Lii-40A and others). The earlier M21A won’t fit the Lii-40A (or Lishen 21700)
Footprint. CSLPM1 is 3030, whereas CULPM1 is 4040.
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
from the convoy thread
so, the difference is 3030 footprint for cslpm1 vs 4040 footprint for culpm1
Exactly. The idea is that the larger footprint allows higher currents due to better heatsinking.
Osram’s datasheet says 6A, but since when did we use to stick with specs from datasheets?
We run cree LED’S on currents not even mentioned by Cree
All else being equal, I think the effective difference will be rather small.
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
I’m curious what the difference will be, since the surface area is 77,77% larger. (16mm instead of 9)
That means it can be abused a bit more (run higher currents) or sustain longer (better thermal dissipation/better performance)
When I say that the effective difference will be rather small, I am speaking about lumens or radiant flux, of course.
The 4040 footprint will handle higher current, but that extra (Vf × I) power will only partially turn into extra lumens or flux.
We'll see.
Deleting a just published post causes the forum thread answer notification to fail. Thus, if you need to change your just published post, edit it. Thanks.
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
I recommend saying no to Covid vaccine. Listen to your soul.
I wonder if the rather small amount of more efficiency on CULNM1.TG / CULPM1.TG will be advantageous if used in a multiemitter array, e.g. underneath a quad optic. I hope to seeing some flashlights using CULNM1.TG underneath a Carclo 10621 optic anytime soon. Maybe Hank (KR4/D4v2) or Sofirn (IF25A) can offer something like this. Acebeam is using CSLNM1.TG (White Flat 1) in their TK16/TK18 lights.
Like this?
LEDs: Osram White Flat 2.1 4040 Boost HX
Driver: MTN-17DDm (w/ Bistro firmware)
Optics: Ledil Angie
Lens: UCLp AR lens
~77kcd
~4470lm @ 3s
5500K CCT
Is that a 3535 board?
KB1428 “Live Life WOT”
Yes 3535. I had a mosX 4040 board I took some Luxeon Vs off of but I kept getting shorts I couldn’t fix.
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