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

[Newlumen]

@emarkd

Got my Maukka calibrated and tested lights in today.

cw S2+ — 283.3 Maukka lumens — 288 TA Tube lumens

So that’s less than 2% out. That’s fantastic really, I don’t know how you’d expect much better.

The package also contains a tested BLF348, neutral white and only a few dozen lumens, but it reads a bit further out so far. I’ve not recharged the cell though, so I’m withholding those numbers until I’ve eliminated any other cause for them to be low. Its not fair to report them at this point.

So far though I’m very pleased with these results.

Thank you for the valuable information.

[Newlumen]

@teacher

Great video review VoB!! :+1:

https://youtu.be/f6Aep_x6tJs
.
Starting at around 6:10 Matt is using the TA Lumen Tube. He places the lights directly on what appears to be the first set of diffusers. Is this the “proper proceedure”?? From what I remember reading it is not.

But my question is this. If the light is placed on the first set of diffusers and the tube is then calibrated using maukka’s calibration lights , will the tube yeild the correct readings?

It doesnt look like a TA tube… i think he is still using his old tube with glass.

[Texas_Ace]

@teacher

Great video review VoB!! :+1:

https://youtu.be/f6Aep_x6tJs
.
Starting at around 6:10 Matt is using the TA Lumen Tube. He places the lights directly on what appears to be the first set of diffusers. Is this the “proper proceedure”?? From what I remember reading it is not.

But my question is this. If the light is placed on the first set of diffusers and the tube is then calibrated using maukka’s calibration lights , will the tube yeild the correct readings?

That is a tube he made himself. He shows how he made it in another video.

It is based on the older design that does not use any baffles / diffusers.

[vestureofblood]

The above comments are correct. That tube is one a made a good while back. The readings I got for that light should be quite close, but the testing you saw in the video is basically the only testing I have done since my Maukka lights arrived, so don’t take it as absolute truth :innocent:

[vinte77]

I might have missed this but TA are there any updates on the xhp50.2 you ordered?

[Texas_Ace]

@vinte77

I might have missed this but TA are there any updates on the xhp50.2 you ordered?

Actually they showed up a little bit ago but I have not had time to mess with them yet. I am hoping to get some time next week to test them out if all goes well.

[teacher]

Oh OK, got it. :+1:
Thanks for the info Newlumen, Texas_Ace, & vestureofblood.

[vinte77]

@Texas_Ace

@vinte77

I might have missed this but TA are there any updates on the xhp50.2 you ordered?

Actually they showed up a little bit ago but I have not had time to mess with them yet. I am hoping to get some time next week to test them out if all goes well.

Nice, I’m looking forward to your review and possibly buying some if you post any for sale.

[Texas_Ace]

Yeah, I will have a handful for sale, just not sure how many yet or what they will look like.

[JasonWW]

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

[Texas_Ace]

@JasonWW

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

Yep, welcome to the world of DIY calibration. This does not surprise me honestly, this is why I said that with the afer-market correction discs 7% was my tolerance of choice since that was the highest I saw just dropping the discs in.

Like Djozz said, “The man with only one watch always knows what time it is.”

[chops728]

@JasonWW

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

Kind of depressing when you test those high lumen lights :person_facepalming:

[Newlumen]

@JasonWW

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

No wonder your convoy l6 is making over 8000 lumen… sigh.

[JasonWW]

@Newlumen

@JasonWW

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

No wonder your convoy l6 is making over 8000 lumen… sigh.

Who?

[Texas_Ace]

@chops728

@JasonWW

I got my CW S2+ calibration light from Maukka yesterday.

It turns out my TA Lumen Tube was one of those outliers. It was reading 7% too high.

So I was able to adjust my correction disc orientation plus add a little piece of matte tape to get it to read dead on. :+1:

I also tested my calibration light in my JoshK sphere to find out it was reading 6.3% too high.

This is all pretty surprising. I thought both my spheres measuring so close to one another meant they were pretty close to accurate. Turns out they were both a little on the high side.

Kind of depressing when you test those high lumen lights :person_facepalming:

If you want to get your sphere re-calibrated I can loan you one of my standard lights to fine tune the calibration. Since the first ones were not directly calibrated with the standard lights, they will have a larger tolerance of course since the correction discs themselves can have a few percent of variation.

[KawiBoy1428]

Here is mine, set up exactly to the T/A diffuser disc instructions, using Maukka calibrated lights. Tube reads 58/278

Not too shabby!

[Texas_Ace]

Thanks for the update KB!

[teacher]

Thanks for sharing KawiBoy1428. That is excellent… :+1:

[Newlumen]

Thanks Kawi. Excellent results… TA tube is the best !

[SKV89]

I got my Maukka lights a few days ago but just had time to test it on my 4” lumen sphere:
Convoy S2+ measures 318 lumens vs 274 lumens per Maukka = 16% too high
BLF 348 measures 44 lumens vs 38 lumens per Maukka = 15.8 % too high.

Please note that I only did a 0.70 calibration with the two correction disc instead of the recommended 0.68 because I was waiting for the Maukka lights to fine tune my sphere.

I’m once again disappointed to know that all my flashlights produces lumens so far less than advertised or from my previous measurements. I’m not disappointed at the TA lumen sphere though as it is such an easy fix having the Maukka lights in hand and the TA lumen sphere has been so very consistent compared to my calibrated ceiling bounce method. Thank you TA and Maukka for making it possible for us regular folks to be able to get accurate ANSI lumens for so little money!