Texas_Ace BLF Calibrated Lumen tube / Sphere No math skills needed - Several spheres still available

Right now the TA lumen tube is reading too high, so we take the numbers from the meter (usually after 30 seconds when using higher levels) and multiply by .7 to get true lumens.

TA is making a little disc that we add to our tubes to make them read about 30% lower. This means we don’t have to do any math. The reading on the meter will be the correct lumen output.

Correct, for the 3” tubes it will just be a matter of popping them into the meter hole in the correct orientation.

For the 4” tubes they will need to tape the discs to the meter in order to make them stay put. Not hard, just needs a strip of normal official tape to goa round the outside edge of the meter / discs.

All readings are at 30 sec and batterys is 30q att 4,18-4,19v rested about 1 hour after charging.
26650 Battery Liitokala blue. Correction factor 0.68 The factor is after tested light from Maukka.
It was one number that fell outside of the ,68 factor but for consistent reading all are ,68.

Olight sr mini intimidator
Low 417 Lumen
Turbo 2500 Lumen

Klarus Xt11Gt first gen
Medium 72 Lumen
High 318 Lumen
Turbo 1448 Lumen
Klarus Xt11Gt second gen.
Medium 95 Lumen
High 402 Lumen
Turbo 1747 Lumen

Olight R50 seeker
Low 27 Lumen
Medium 395 Lumen
High 1193 Lumen
Turbo 2352

Imalent Dn70 1:a
Low 42 Lumen
Medium 329 Lumen
High 2257 Lumen
Turbo 2964

Imalent 2:a
Low 47 Lumen
Medium 347
High 2128
Turbo 3114

Imalent Dn35
Low 20 Lumen
Medium 435 Lumen
High 1162 Lumen
Turbo 1394 Lumen

Nightcore Tm03 supplied battery
Low 41 Lumen
Medium 673 Lumen
High 1638 Lumen
Turbo 3216 Lumen.

Nightcore EC11 Nightcores battery Yelow/black 18350
Medium1) 141 Lumen
Medium2) 279 Lumen
High 496 Lumen
Turbo 952 Lumen

Convoy L6
Low 17 Lumen
Medium 150 Lumen
High 1328 Lumen
Turbo 3060 Lumen

Thorfire S70s
Low 282 Lumen
Medium 918 Lumen
High 2434 Lumen
Turbo 3447

Emisar D4
Default 153 Lumen
Turbo 1652 Lumen 30 sec Emisar D1 Default 155 Lumen Turbo 1468 Lumen 30 sec

Astroluw C8
Low 1)
Low2) 5 Lumen
Medium1) 57 Lumen
Medium2) 178 Lumen
High1) 418 Lumen
High2) 818 Lumen
Turbo 1379 Lumen.

Sofirn C8a 1:a
Medium 80 Lumen
High 530 Lumen
Turbo 1822 Lumen

Sofirn C8a 2:a
Madium 80 Lumen
High 490 Lumen
Turbo 1856 Lumen

Sofirn Sf 11. Battery Ikea Ladda 2450
Low 15 Lumen
Medium 150 Lumen
High 345 Lumen
Turbo 969 Lumen

I have several small AA lights to but I have not tested them yet.

Very cool.

I was a bit disappointed in the Convoy L6. I thought they were closer to 3400-3500 like the S70s. My L6 is way too modded to get factory readings from. I think the L6 amp draw was 4.5A and the S70 was 5A so not too far apart.

Bypassing the sense resistor on the L6 got me 7.7A. That wakes it up. Lol

I thought your Astrolux C8 was awfully bright at 1380, then I see they use a FET driver in it. That explains it. It might even be higher than the rated spec of 1300 lumen. :slight_smile:

What is up with the Sofirn C8A? 1800 lumen! That must be due to the low Vf of the xpl-2 combined with a FET driver. That’s my kind of C8. It is also conservatively rated at 1747 lumen. I might need to get one of those. :slight_smile:

The sofirn C8a have spring bypas from factory, they are nice but get hott fast :slight_smile:

.70 sounds good.

TA, for the re calibration discs you’re making are you using 30 seconds after turn on?

The light I am using only changes by about 2-3 lumens from 5 seconds to 30 seconds so I generally take the readings somewhere in that time frame. At this point it is just verification on all the other spheres.

For my personal readings, I rarely use 30 second readings unless requested for various reasons I have explained before.

Basically when taking many readings throughout the day it becomes very time consuming to use 30 second readings. The batteries also need to be recharged after each 30 second reading in many cases. The light also has to cool off after each reading.

So generally my readings are between 5-10 seconds or when the readings stabilize and then I round down from there to get around 30 second numbers.

Ok just wondered, thanks for explaining.

I’m sure he’s using the exact instructions Maukka gave him to use (including battery or power supply voltage) to match the readings he recorded in his sphere. So that should all be good. No worries in that department. :+1:

Yes, he gave me both the turn on numbers along with the 30 second numbers. Luckily the low modes of the S2+ are very consistent so the timing is not super important but I did indeed test it at the 30 second mark a few times to double check.

The BLF348 is amazingly consistent, it is what it is and stays that way.

.70 Send it! :+1: Can you post some pic’s of the mod too when you get the chance?

Yep, once I have it finalized I will get some pictures to show exactly how to install it.

I got the diffusing sheet today and hope to get it cut tomorrow.

Some of us may have two correction factors. My personal one will be .73 based on all collected data, but can use .70 in the future when comparing community readings. I'm not sure I will want to add any filters to mine - as it just adds another variable. I think I'm content with mine the way it is.

That’s cool, I would just recommend that if you say you measured the lumens using Texas Aces Lumen tube to please add what correction factor you’re using so that other people won’t be confused.

I tested the stock fenix tk15 rated 1000 lumen… using .70 factor, it gives me 1050 lumen…

So far so good…

Obviously it is your sphere, you can do what you want with it but I plan to send them to everyone so they at least have the choice of using them.

Should only cost me around $140 to send these out to everyone. lol

I stand behind my products so it is worth it to keep my reputation in tact.

Did i tell you guys i got almost 19000 lumen @30 seconds with my mt09r TA triple xhp70.2… This light is amazing… i think its one of my best xhp70.2 light…

Using a .68 factor it’s even closer at 1020 lumen. :wink:

I think that is roughly $5 per tube. I’ll gladly pay you $5 to cover my expense. It’s no big deal.

Wow, I was thinking if TA measured it before at let’s say 21,000 lm, then it might turn out to actually be closer to 15,000 lm once he uses a .68 or .70 correction factor. But your still seeing 19,000? That’s huge.