Actual Lumen Readings in 10.5in Sphere.

[dandism]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

BigC, will there be a San Jose area lumen measureing meet? :naughty:

 

[joshconsulting]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Interesting, it seems the DBS reflector collects more of the light but I would have thought the output would drop less. Do you have any thermal paste to try putting around the base of the reflector where it fits into the body, and possibly where the P60 module screws into the reflector? That seemed to help thermal conductivity on mine.

Also, was yours the stock AR glass or a replacement? The stock apparently has a 95-96% transmission, and isn't quite up to par with flashlightlens.com's lenses. Jay also told me that there were issues with milky lenses, but those were supposed to have been fixed.

Either way, no big difference. Quite an impressive output scraping 500, the 2.8 would likely get 530ish on turnon 🙂

 

[recDNA]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

MMM Dereelight with Nailbender SST-50....how in the world am I going to justify buying another flashlight. Let's see...the bathroom in the playroom hasn't got a flashlight...err the garage doesn't have a flashlight...Nailbender to my pocket Quark to the garage!

Now that I think about it I'm waiting until the new Dereelight tactical tailcap is available. Too hard to push the clicky and I never use flashlights to tailstand.

 

[csshih]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

BigC, will there be a San Jose area lumen measureing meet? :naughty:

lol,

 

[flashfiend]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

BigC, can you PM with your general location in SJ? Do you live in the southern part or northern part? I feel like with me living in San Leandro I am close but yet so far. I really want to see if the DBS changes your initial findings with the direct drive sst-50. In my case I'd be using a protected battery and not IMR (current ?heat? shouldn't spike so fast). I should have a nailbender/FM sst-90 DD mag setup to test as well very soon.

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Craig,

I have a Dereelight R2 with Aspherical of my own now

I been doing beamshoots at 200yards with the Dereelight and the DEFT FTP and I can't see one brighter at that distance than the other.


Maybe I need to test those Aspherical monsters at 400 yards to see which is the obious thrower.

bigC

 

[recDNA]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Got a lux meter?

 

[csshih]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

perhaps the rubber pre-colliminator needs playing with. I accidentally bumped it before.

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

perhaps the rubber pre-colliminator needs playing with. I accidentally bumped it before.

Thanks,

I will try messing around with the pre-colliminator and see if it clearly beats the Dereelight Aspherical at 200 yards.

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Finally I got to measure the Fenix TK40 MC-E. Really nice light if I may add.





Here are all the lights added as of last night.😀


Name of light__________________LED Type ________________Batteries ________________Lumens __________ Time
Fenix TK40_____________________________ MC-E_________________________8 Eneloops_______________________ 570.8_________________1 sec
Fenix TK40______________________________MC-E_________________________8 Eneloops________________________552.3_____________ ____30 sec
Fenix TK40______________________________MC-E_________________________8 Eneloops________________________543.8_____________ ____1 min
Fenix TK40______________________________MC-E_________________________8 Eneloops________________________542.3_____________ ____2 min
Fenix TK40______________________________MC-E_________________________8 Eneloops________________________553.1_____________ ____3 min
4D Mag Terralux TLE-300M-EX_____________3 R2_________________________4D Alkalines______________________ 608.5_________________1 sec
4D Mag Terralux TLE-300M-EX______________3 R2__________________________4D Alkalines______________________ 522.3_________________30 sec
4D Mag Terralux TLE-300M-EX______________3 R2__________________________4D Alkalines______________________ 504.6_________________1 min
4D Mag Terralux TLE-300M-EX______________3 R2__________________________4D Alkalines______________________ 485.4_________________2 min
4D Mag Terralux TLE-300M-EX______________3 R2__________________________4D Alkalines______________________ 473.8_________________3 min
MiniMag AA w/Terralux TLE-5EX___________Q5__________________________ 2 AA Eneloop_____________________81.5_________________ 1 min
MiniMag AA w/Terralux TLE-5EX_____________Q5___________________________2 AA Eneloop______________________80.8_________________ 30 min
MiniMag AA w/Terralux TLE-5EX_____________Q5___________________________2 AA Eneloop______________________79.2_________________ 1 min
MiniMag AA w/Terralux TLE-5EX_____________Q5___________________________2 AA Eneloop______________________72.3_________________ 2 min
MiniMag AA w/Terralux TLE-5EX_____________Q5___________________________2 AA Eneloop______________________70.0_________________ 3 min
Fenix LD10_____________________________ Q5___________________________2 AA Eneloop____________________115.4__________________ 1 sec
Fenix LD10______________________________ Q5___________________________2 AA Eneloop_____________________106.2_________________ _30 sec
Fenix LD10______________________________ Q5___________________________2 AA Eneloop_____________________103.8_________________ _1 min
Fenix LD10______________________________ Q5___________________________2 AA Eneloop_____________________101.5_________________ _2 min
Fenix LD10______________________________ Q5___________________________2 AA Eneloop_____________________100.8_________________ _3 min
Regal EDC______________________________Q5_______________ ____________2 AA Eneloop______________________100.0________________ 1 sec
Regal EDC______________________________ Q5___________________________2 AA Eneloop______________________ 90.8________________ 30 sec
Regal EDC______________________________ Q5___________________________2 AA Eneloop______________________ 88.5________________ 1 min
Regal EDC______________________________ Q5___________________________2 AA Eneloop______________________ 86.9________________ 2 min
ITP A2 EOS_____________________________ Q5___________________________2 AA Eneloop______________________70.0_________________ 1 sec
ITP A2 EOS_____________________________ Q5___________________________2 AA Eneloop______________________ 66.2_________________30 sec
ITP A2 EOS_____________________________ Q5___________________________2 AA Eneloop______________________ 65.4_________________1 min
EagleTac P10A__________________________ Q5___________________________2 AA Eneloop_____________________123.1_________________ 1 sec
EagleTac P10A___________________________Q5_________________ __________2 AA Eneloop______________________111.5________________ _30 sec
EagleTac P10A___________________________Q5_________________ __________2 AA Eneloop______________________108.5________________ _1 min
EagleTac P10A___________________________Q5_________________ __________2 AA Eneloop______________________105.4________________ _2 min
EagleTac P10A___________________________Q5_________________ __________2 AA Eneloop______________________103.8________________ _3 min
Jetbeam Jet-i V3_________________________R2_____________________ ______2 AA Eneloop_____________________117.7_________________ 1 sec
Jetbeam Jet-i V3__________________________R2____________________ _______2 AA Eneloop______________________117.7________________ _30 sec
Jetbeam Jet-i V3__________________________R2____________________ _______2 AA Eneloop______________________116.2________________ _1 min
Jetbeam Jet-i V3__________________________R2____________________ _______2 AA Eneloop______________________113.8________________ _2 min
Jetbeam Jet-i V3__________________________R2____________________ _______2 AA Eneloop______________________113.8________________ _3 min
Tiablo TL-1 V.2__________________________Q5___________________ ________ 2 AA Eneloop_____________________80.0_________________ 1 sec
Tiablo TL-1 V.2___________________________Q5__________________ _________ 2 AA Eneloop______________________76.2_________________ 30 sec
Tiablo TL-1 V.2___________________________Q5__________________ _________ 2 AA Eneloop______________________74.6_________________ 1 min
Tiablo TL-1 V.2___________________________Q5__________________ _________ 2 AA Eneloop______________________73.1_________________ 2 min
Tiablo TL-1 V.2___________________________Q5__________________ _________ 2 AA Eneloop______________________72.3_________________ 3 min
NiteCore EZAA__________________________Q5__________________ _________ 2 AA Eneloop_____________________103.1_________________ 1 sec
NiteCore EZAA___________________________Q5_________________ __________ 2 AA Eneloop_____________________104.6_________________ 30 sec
NiteCore EZAA___________________________Q5_________________ __________ 2 AA Eneloop_____________________104.6_________________ 1 min
NiteCore EZAA___________________________Q5_________________ __________ 2 AA Eneloop_____________________104.6_________________ 2 min
Fenix LD01 Mod________________________XP-G R5_______________________1 AAA Eneloop____________________ 96.9_________________ 1 sec
Fenix LD01 Mod_________________________XP-G R5_______________________1 AAA Eneloop_____________________ 91.5_________________ 30 sec
Fenix LD01 Mod_________________________XP-G R5_______________________1 AAA Eneloop_____________________ 89.2_________________ 1 min
Fenix LD01 Mod_________________________XP-G R5_______________________1 AAA Eneloop_____________________ 87.7_________________ 2 min
2D Mag w/ Malkoff_____________________P7 Drop-in_______________________2 AW 18650______________________ 463.1_________________1 sec
2D Mag w/ Malkoff______________________P7 Drop-in________________________2 AW 18650______________________ 389.2_________________30 sec
2D Mag w/ Malkoff______________________P7 Drop-in________________________2 AW 18650______________________ 392.3_________________1 min
2D Mag w/ Malkoff______________________P7 Drop-in________________________2 AW 18650______________________ 393.1_________________2 min
2D Mag w/ Malkoff______________________P7 Drop-in________________________2 AW 18650______________________ 390.8_________________3 min
Surefire U2 Ultra_______________________ Stock________________________2 CR123 Primaries__________________ 133.1_________________1 sec
Surefire U2 Ultra_________________________Stock_______________ _________2 CR123 Primaries___________________ 117.7_________________30 sec
Surefire U2 Ultra_________________________Stock_______________ _________2 CR123 Primaries___________________ 122.3_________________1 min
Surefire U2 Ultra_________________________Stock_______________ _________2 CR123 Primaries___________________ 119.2_________________2 min
Surefire U2 Ultra_________________________Stock_______________ _________2 CR123 Primaries___________________ 117.7_________________3 min
Megalenium w/SOB Tower_____SOB 1227 XP-G R4 by JustinCase__________ 3 AW 18650______________________169.2_________________1 sec
Megalenium w/SOB Tower_______SOB 1227 XP-G R4 by JustinCase____________3 AW 18650______________________150.0_________________3 0 sec
Megalenium w/SOB Tower_______SOB 1227 XP-G R4 by JustinCase____________3 AW 18650______________________148.5_________________1 min
Megalenium w/SOB Tower_______SOB 1227 XP-G R4 by JustinCase____________3 AW 18650______________________146.9_________________2 min
Surefire M6 w/ SOB Tower_____SOB 1000 P4 by JustinCase________________??????????______________ _______120.0_________________1 sec
Surefire M6 w/ SOB Tower_______SOB 1000 P4 by JustinCase_________________??????????_____________ _________ 114.6_________________30 sec
Surefire M6 w/ SOB Tower_______SOB 1000 P4 by JustinCase_________________??????????_____________ _________ 113.8_________________1 min
Surefire M6 w/ SOB Tower_______SOB 1000 P4 by JustinCase_________________??????????_____________ _________ 112.3_________________2 min
Mag 4D w/Malkoff P4 mod_____JustinCase put an XP-G R4 in lieu of P4______ 4D Alkaline_____________________ 164.6_________________1 sec
Mag 4D w/Malkoff P4 mod_______JustinCase put an XP-G R4 in lieu of P4_________4D Alkaline______________________139.2_______________ __30 sec
Mag 4D w/Malkoff P4 mod_______JustinCase put an XP-G R4 in lieu of P4_________4D Alkaline______________________136.2_______________ __1 min
Mag 4D w/Malkoff P4 mod_______JustinCase put an XP-G R4 in lieu of P4_________4D Alkaline______________________133.8_______________ __2 min
Mag 4D w/Malkoff P4 mod_______JustinCase put an XP-G R4 in lieu of P4_________4D Alkaline______________________132.3_______________ __3 min

 

[MrGman]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

DANNNNNGGGGGGGGGGGGGG big C, your just going to town on all these readings. Great job.

 

[was.lost.but.now.found]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Big C, very nice work. While we may not all say it all the time, your thread gets tons of views and I'm sure I speak for everyone here that this public service is very much appreciated.

A couple questions/observations, on the TK40, I noticed the lumens started to rise at 3 minutes, do you think the batteries started to get warm and perform better as the light began to warm? Second, on the LD10, I believe that should be 1xAA, either that or the sender had the LD10 head on an LD20 body (LD10 - 1xAA, LD20 - 2xAA).

Thanks for all you do!!

 

[Outdoors Fanatic]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Where did those so-called 630 OTF lumens claimed by the Fenix go?

 

[Justin Case]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Surprising that the AW/XP-G R4 and SSC P4 U2 towers measured so low. When I ceiling bounced those and other similar towers, they were all comparable to or brighter than a Malkoff M30. Also, I measured the drive current from the drivers to the LED. To get 170 OTF lumens from an XP-G R4, the drive current would have to be closer to about 750mA (assuming 30% optical losses from the reflector and the window), whereas I measured 1196mA drive current from the SOB1227. Similarly for the P4 tower, I measured 964mA drive current from the SOB1000. The P4 is a U2-bin from Photonfanatic, so it should be up to spec, meaning at least 100 emitter lumens at 350mA. To get 120 OTF lumens, the drive current would have to be around 700mA, again assuming 30% optical losses.

 

[was.lost.but.now.found]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Where did those so-called 630 OTF lumens claimed by the Fenix go?

Even Light Reviews measured 626 (obviously VERY close to 630), but then I'm not an expert on the complexities of an IS.

http://www.light-reviews.com/forum/viewtopic.php?f=4&t=122

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Surprising that the AW/XP-G R4 and SSC P4 U2 towers measured so low. When I ceiling bounced those and other similar towers, they were all comparable to or brighter than a Malkoff M30. Also, I measured the drive current from the drivers to the LED. To get 170 OTF lumens from an XP-G R4, the drive current would have to be closer to about 750mA (assuming 30% optical losses from the reflector and the window), whereas I measured 1196mA drive current from the SOB1227. Similarly for the P4 tower, I measured 964mA drive current from the SOB1000. The P4 is a U2-bin from Photonfanatic, so it should be up to spec, meaning at least 100 emitter lumens at 350mA. To get 120 OTF lumens, the drive current would have to be around 700mA, again assuming 30% optical losses.

Justin,
The KT-4 bezels I am not sure are AR coated. More importantly the Surefire KT-4 bezels have a shock isolation that in M series bezels for example we loose at least 15~20% OTF lumens.

Jaudice will have a KT-2 bezel which doesn't have that shock isolation ring and he said it might even have AR coated lens too. Once John gets them we can re-test and you can expect those lumens to go up:twothumbs

 

[jaundice]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Surprising that the AW/XP-G R4 and SSC P4 U2 towers measured so low. When I ceiling bounced those and other similar towers, they were all comparable to or brighter than a Malkoff M30. Also, I measured the drive current from the drivers to the LED. To get 170 OTF lumens from an XP-G R4, the drive current would have to be closer to about 750mA (assuming 30% optical losses from the reflector and the window), whereas I measured 1196mA drive current from the SOB1227. Similarly for the P4 tower, I measured 964mA drive current from the SOB1000. The P4 is a U2-bin from Photonfanatic, so it should be up to spec, meaning at least 100 emitter lumens at 350mA. To get 120 OTF lumens, the drive current would have to be around 700mA, again assuming 30% optical losses.

Justin;

Those towers were tested in a KT4 turbohead. BigChelis' data suggests that the foam shock-isolation causes an additional 10% light loss. This is due to the black foam absorbing so much light. I can retest those towers using a KT1/2, and we'll see what they read.

I agree that visually, those towers seem brighter.

-John

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

Even Light Reviews measured 626 (obviously VERY close to 630), but then I'm not an expert on the complexities of an IS.

http://www.light-reviews.com/forum/viewtopic.php?f=4&t=122

If they measure instant-peak no doubt it will be way over 600 OTF, but I don't like to do those measurements because instant peak is between 0~1 sec. I rather do the 1 second reading because our eyes will actually see the 1 second reading.

The TK40 is very stable with little if any drop. The MC-E is regulated and you can see the lumens go up after turn-on due to that.

 

[jaundice]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

BigC;

Funny, we posted almost exactly the same substance from our conversation last night.

Alternately, we could test the tower alone, without a turbohead, for another reading?

-John

 

[bigchelis]

Re: Actual Lumen Readings by bigchelis in 10.5in Sphere.

DANNNNNGGGGGGGGGGGGGG big C, your just going to town on all these readings. Great job.

I think I am going over doing it.:sick2: I will have another Anto XP-G R5 for re-testing soon. As you saw the lumens on mine dropped super fast compared to the R4 sample.