I sent PM to him… i will let you know.
Texas_Ace BLF Calibrated Lumen tube / Sphere No math skills needed - Several spheres still available
We always put the reflective tape side down into the tube. This is the way TA calibrated it.
If you flip the spacer over to have the painted side down, you get unknown numbers.
Yes, the silver paint was an experiment to try to make things simpler but it didn’t work. Too bad, that reflective tape was way way more work then it seems.
I spent last night reading through all the posts - interesting stuff!
Curious, does ambient light impact the measurements at all? In other words, does it matter if the measurements are taken in a dark room vs outside in the sun?
The PVC is thick enough that the most I have ever really seen is 1-2 lumens from ambient light through the pipe itself.
So yea. Maukka lumen are legit… he tested astrolux mf02 cw @ 30 seconds and got 2109 lumen…
I tested my mf02 nw @30 seconds and got 2044 lumen.
I am using .70 correction factor as worst case scenario…
Yep, I kinda figured they would be…. since he does have a real Integrated Sphere. 
I think it’s only fair to mention the MF02 has had at least three different driver versions with three different turbo output levels. When the MF02 first came out, turbo was about 1.8 amp. Then it got bumped up to about 2.2 amp. The very latest versions within the last month seem to have been bumped up to about 2.7 amp.
Mine is the latest version… we can say for sure mf02 are no more than 2100 lumen…
I just had some time to play with the lumen tube very briefly. It is VERY easy to use compared to my ceiling bounce and calculator method. It is also very consistent regardless of the flashlight head insertion depth, which is a sigh of relief because that was something I was worried about. The measurements are very high though as already confirmed by others. I get about 27.5k startup lumens on my MT09RTA whereas using my previous ceiling bounce standard, I was getting 22.8k startup lumens. Once TA gets the calibration corrected, this will be a fantastic device. I don’t regret my purchase a tiny bit I can tell it required alot of manual labor to construct this along with the discs.
Now I will have to store this away until I find a place to put this in my house. I’m out of room already. My room is already littered with flashslights and batteries.
Thats good bro… i calibrated my meter to fenix standard, and took the .70 factor lowest number for the worst case scenario.
Haikelite mt09r TA triple xhp 35 cw. 5425 lumen @ 30 seconds
Haikelite mt09r TA tiple xhp70.2 cw. 18,200 lumen @30 seconds.
Haikelite mt07s. TA. Single xhp70.2 cw. 6552 lumen @ 30 seconds.
Sorry if it’s too off topic, but is there an easy way to tell what version my MF02 is? Thanks!
When you bought it would give you a general idea. The only way for sure is to measure the amp draw on the emitter.
Bezel were glued very tight in the latest version. If you purchased after jan, most likey they are new version.
Yeah, I think Lexel said the early versions had no thread locker. Then they started using a light colored thread locker that was pretty weak. The latest ones use a red thread locker and are really hard to break loose.
Arrived today
First test：LuminTop ODF30
moon： 11
Low：191
Mid：682
High：2140
Turbo：4270
[correction facto 0.8 ?]
Original factory value:
moon： 8
Low：150
Mid：540
High：1800
Turbo：3500
Hi all.
I’m excited, i got my lumen tube today so now the fun begins:)/Micael
Is a flooder or a spot giving higer lumens/Lux on the meter?
The way TA designed the tube, it should read the same.
They should read basically the same, although the way the light bounces around in the first chamber can effect things slightly, although this is usually due to the throwers having larger reflectors.
Congrats steel… it’s good the TA arrived safely… lumintop lumen are not consistent… I don’t know how they measured… I don’t think it really 3500 lumen… probably around 3000 lumen @ 30 seconds…
I am guessing your correction factor is .68