Jmpaul320 OTF Lumen Sphere Readings & throw measurements!

Candle Power Flashlight Forum

Help Support CPF:

Re: Jmpaul320 OTF Lumen Sphere Readings & throw measurements!

:popcorn:

vinhnguyen54 said:
Lumapower Strivevn XML2 dedomed
Efest 26650
1044@ turn on
985@ 30sec
380 high
23 mid
3 low
47,000 Lux


I think the numbers, runtime and size for this light are very attractive. However I am going to hold on to the release of this light due to one more very important development for this light. It might be the first light to have this treatment. Stay tuned :-)
Click to expand...
 
Re: Jmpaul320 OTF Lumen Sphere Readings & throw measurements!

Wow that's quite a coincidence that the 2 different d25cvn's have the exact same lumen readings on all modes except turbo. U sure those didn't get mixed up?

oh BTW thanks Justin for doing this :buddies:

jmpaul320 said:
Lumapower Strivevn XML2 dedomed
Efest 26650
1044@ turn on
985@ 30sec
380 high
23 mid
3 low
47,000 Lux

Thrunite TN30vn 3x XML2 NW
Sony vtc5
3967@ turn on
3784@ 30sec
2354 high
552 mid
60 low
1 firefly
43,000 Lux

Thrunite TN30vn 3x XML2 CW
Sony vtc5
4280@ turn on
4097@ 30sec
2461 high
569 mid
61 low
1 firefly
54,000 Lux

Thrunite TN30vn 3x XML2 PDTn
Sony vtc5
3601@ turn on
3458@ 30sec
2047 high
484 mid
55 low
1 firefly
95,000 Lux

Thrunite TN36vn 3x MKR WW
Sony vtc5
6211@ turn on
6002@ 30sec
2023 high
718 mid
61 low
1 firefly
22,000 Lux

Eagletac D25cvn XPL 4000k drivervn
Kinoko IMR
1044@ turn on
912@ 30sec
237 high
85 mid
25 low
6 low 2
0.13 firefly
9,300 Lux


Eagletac D25cvn XPG2 PDTc 4000k drivervn
Kinoko IMR
652@ turn on
596@ 30sec
237 high
85 mid
25 low
6 low 2
0.13 firefly
24,000 Lux

At first I thought there was a mistake with the tn36vn warm white (cool white version does 8000+ lumen) - but I did retest a few time to confirm the numbers. I suspect the leds in the warm white (4000k-ish tint to my eyes) are 2 bins lower than the cool white. Maybe vinh can confirm if he knows the eact led used... Bins can vary 0-14% between each other usually - meaning warm white vs cool white could be up to 28% less lumen.

I guess this is all just a guess and speculation - could be a number of other things, overall resistance.... driver efficiency, optics... etc.

After testing both the tm06vn and the tn30vn I would buy the tn30vn over the tm06vn any day.

If you are looking for a d25cvn I would reccomend the xpg2 pdtn or pdtc as it throws better and puts out less heat than the xpl. The xpl gets very hot and fast on turbo (30 seconds).

I also have a thrunite tisvn to test, but no imr10440. Vinh is sending me some batteries to test that light.

These took a lot of time to test - I spent about 4 hours sunday and another 2-3 last night. Hopefully everyone enjoys the numbers :) I enjoyed testing them.
Click to expand...
 
Last edited:
corrected

Eagletac D25cvn XPL 4000k drivervn
Kinoko IMR
1044@ turn on
912@ 30sec
403 high
150 mid
44 low
11 low 2
0.14 firefly
9,300 Lux


Eagletac D25cvn XPG2 PDTc 4000k drivervn
Kinoko IMR
652@ turn on
596@ 30sec
237 high
85 mid
25 low
6 low 2
0.13 firefly
24,000 Lux
 
testing this afternoon:

tisvn 10440imr
olight i3s ti xpg2 10440 imr stock (to compare to tisvn)
tn36vn 3x xhp70
 
Thrunite Tisvn XPL 5700k single mode
Efest 10440
741@ turn on
561@ 30sec
4,600 Lux

I tried imr 10440 on my i3s ti but was only getting 120 lumen... tried once more and fried the driver. lol.

the tisvn gets hot and fast - i have only used it for bursts of 30 seconds or less on a fresh battery... 50% battery is ok to run for around 60 seconds but not more or you will scald your hand!
 
Last edited:
Thrunite TN36vn 3x XHP cool white
Sony vtc5
7829@ turn on
7594@ 30sec
2350 high
748 mid
84 low
1 firefly
21,000 Lux

triple mkr is still the brightest :)
 
joshjp said:
Hmmm i thought the XHP were brighter LEDs?
Click to expand...

maybe in theory - but it depends on voltage & driver requirements

this led is still in its infancy - i think with additional testing and maybe some different driver options in the future we will see much more from this led :)
 
joshjp said:
Ohh ok, i wonder how they can ship them out like that?
Click to expand...

Tolerance and yield.

Every manufactured good has tolerances - ranges of variation that are deemed acceptable. Sheet metal, televisions, shoes, granola bars - you name it. Dimensions of variation include linear distances between points, angles, weights, material densities, hardness, spring rates, rigidity/flexibility, volumes, material compositions, and other empirical differences that can effect product performance. Parts that are out of tolerance can be discarded, sold as "blemished" goods, or sold as scrap for the secondary market to do whatever they think will net a profit.

Yield is an issue more specific to semiconductors where variations in the underlying process of production result in quantifiable variations in performance from component to component. With LED's, these variations are brightness at a given test current, tint, and in some cases forward voltage. LED binning is commonly used to divide up a particular product around common areas of yield and allows for some truth-in-labelling with inferior, average, and superior components being marked and priced as such. As a new product matures, quality tends to improve as the process is dialed in and there is a shift towards more desirable bins with average becoming inferior, superior becoming average, and the previously-unobtainable becoming superior. It is at this point that flashlight manufacturers using the component face a choice - improve performance and move up a bin or two for the same price while repositioning it as a better model, or cut costs by moving down a bin or two and maintain the same performance?
 
joshjp said:
Hmmm i thought the XHP were brighter LEDs?
Click to expand...

jmpaul320 said:
maybe in theory - but it depends on voltage & driver requirements

this led is still in its infancy - i think with additional testing and maybe some different driver options in the future we will see much more from this led :)
Click to expand...

According to Cree:

XLamp XHP70

Redefining Performance to Radically Lower System Cost

Powered by Cree’s groundbreaking SC5 Technology™ Platform, the XLamp XHP70 LED is a member of Cree’s Extreme High Power (XHP) class of LEDs that redefines lumen density and reliability to radically reduce system costs by up to 40 percent. At its maximum current, the XHP70 LED delivers twice the light output of the industry’s brightest single-die LED, the XLamp MK-R LED, at a similar lumens per watt and without increasing the package footprint. The XHP70 LED also achieves longer lifetime at higher operating temperatures. The overall result is significantly lower thermal, mechanical and optical costs at the system level.


[TABLE="width: 654"]
[TR="bgcolor: #F0F4FA"]
[TD]Size[/TD]
[TD]7 x 7 mm[/TD]
[/TR]
[TR]
[TD]Product Options[/TD]
[TD]6 V
12 V
High-CRI[/TD]
[/TR]
[TR="bgcolor: #F0F4FA"]
[TD]Maximum Drive Current[/TD]
[TD]4.8 A (6V)
2.4 A (12V)[/TD]
[/TR]
[TR]
[TD]Maximum Power[/TD]
[TD]32 W[/TD]
[/TR]
[TR="bgcolor: #F0F4FA"]
[TD]Light Output[/TD]
[TD]4022 lm @ 32 W[/TD]
[/TR]
[TR]
[TD]Typical Forward Voltage[/TD]
[TD]5.8 V White @ 2100 mA (6V)
11.6 V White @ 1050 mA (12V)[/TD]
[/TR]
[/TABLE]

http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Arrays-Directional/XLamp-XHP70

.
 
MaxBeam said:
According to Cree:

XLamp XHP70

Redefining Performance to Radically Lower System Cost

Powered by Cree’s groundbreaking SC5 Technology™ Platform, the XLamp XHP70 LED is a member of Cree’s Extreme High Power (XHP) class of LEDs that redefines lumen density and reliability to radically reduce system costs by up to 40 percent. At its maximum current, the XHP70 LED delivers twice the light output of the industry’s brightest single-die LED, the XLamp MK-R LED, at a similar lumens per watt and without increasing the package footprint. The XHP70 LED also achieves longer lifetime at higher operating temperatures. The overall result is significantly lower thermal, mechanical and optical costs at the system level.


[TABLE="width: 654"]
[TR="bgcolor: #F0F4FA"]
[TD]Size[/TD]
[TD]7 x 7 mm[/TD]
[/TR]
[TR]
[TD]Product Options[/TD]
[TD]6 V
12 V
High-CRI[/TD]
[/TR]
[TR="bgcolor: #F0F4FA"]
[TD]Maximum Drive Current[/TD]
[TD]4.8 A (6V)
2.4 A (12V)[/TD]
[/TR]
[TR]
[TD]Maximum Power[/TD]
[TD]32 W[/TD]
[/TR]
[TR="bgcolor: #F0F4FA"]
[TD]Light Output[/TD]
[TD]4022 lm @ 32 W[/TD]
[/TR]
[TR]
[TD]Typical Forward Voltage[/TD]
[TD]5.8 V White @ 2100 mA (6V)
11.6 V White @ 1050 mA (12V)[/TD]
[/TR]
[/TABLE]

http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Arrays-Directional/XLamp-XHP70

.
Click to expand...
Thanks for that, so i was right.
 
You must log in or register to reply here.

Latest posts

Back
Top