...

Figured I would start a new thread and see if the sphere gets any consistent results, the way it is. I have several lights that should work for testing. Here is a list, with the factory lumens figures. (as far as I can tell that is).

Light Turbo High Med Low Lowest

Olight S80 Baton
750 180 10


Olight SR51 Intimidator
900
250


Olight S10-L2 Baton
400 85 5 0.5

EagleTac SX25L3
2375-2006 1057 175 28

EagleTac T100C2 (XM-L2 U2)
622
88


EagleTac D25C Mini (XP-G2 R5)
230 65 5

Nitecore EC25 900 600 300 145 65

Nitecore EA4 860 550 300 135 65

Nitecore SENS CR
190 60 20


Nitecore EC1 280 200 74 25 4

Thrunite TN12 (2014) 1050 800 280 20 0.3

Armytek Wizard Pro 1050 420 200 70 15 2 0.2
Zebralight SC52 (14500/AA) 300/184 54/27 2.9/0.36


Crelant V11A
500 128 13


Sunwayman VR11 (16340) 500













O-L 2D MT-G2 Maglite ?? ?? ?? ?? ??

The object will to be finding if there is a "fudge number" (conversion factor), for my sphere, to correlate lux to lumens and see if it is possible to get accurate readings. Hopefully, these lights will be enough to tell me something. I have plenty of cells and am in the process of charging cells now. I will be testing early tomorrow morning and hopefully, I will have results tomorrow night.

I really didn't want to put this in the DIY section, since it may be a total fail, or totally not accurate, but I figured someone would be interested to see the aftermath. Especially the person who sent me all these lights to test.

For Batteries, I will be using:

MNKE 3500mAh - 26650

Sony 26650VT - 26650

LGDBHE21865 - 18650

Efest Purple 2500mAh 35A - 18650

Efest V2 Red 700mAh - 16340

Efest Red V2 700mAh - 14500

Eneloop First Gen - AA NiMH

For chargers, I am using the Enova ALL-80 and the Nitecore I4

Well, it's already looking real bad for the sphere. Here's a few readings and numbers figured out and it isn't pretty.

Light Turbo High Med Low Lowest 6 7
Olight S80 Baton MFG Lumens
750 180 10

Olight S80 Baton LUX tests


21900 5800 216




21800 5800 218




21700 5800 220


Average of three tests
21800 5800 218


Conversion factor
29.07 32.22 21.80


Light Turbo High Med Low Lowest 6 7
Nitecore EC25 MFG Lumens 900 600 300 145 65

Nitecore EC25 LUX tests 23000 14600 6900 2600 759


23000 14600 6900 2600 765


23000 14600 6900 2600 768

Average of three tests 23000 14600 6900 2600 764

Conversion factor 25.56 24.33 23.00 17.93 11.75

The three tests of each light on all modes confirm that the meter seems to be working correctly, but that either the placement of it, or the sphere itself is inconsistent. I really don't know what is going on, but it just isn't right, nor is it good. Those conversion factors are all over the place and it suggests that the sphere is too big for low lumen measurements or that the location of the sensor is totally wrong. I would think it's a bit of both, but I am not about to make changes to that sphere. It just isn't a good sphere. Not made right at all. Shoulda listened to others, but then again, I never do and never will, so that's life.

It is definitely going bye bye and I am never going to worry about how many lumens my lights are again. They are bright as hell or bright enough, or they aren't. Who really cares anyhow? I never really have.

“I’m never going to worry about how many lumens my lights are again.” I seem to remember
you saying something like this a few years ago about never using LiIon cells. :wink:

A baffle the correct size and position may make the results closer.

But look at all the fun you had along the way! Well, at least it was fun for me to follow along with your adventures. Never say never……

I reserve the right to forget what I previously said on any given subject, at any given time. It’s one for the few pluses of getting old.

My baffles are all the wrong size and in the wrong position.

Try the Eagletac lights—they are the only manufacturer I feel list accurate ansi lumens