Lumintop Tool AAA Copper + Titanium measurements (Nichia 219B)

maukka

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Here's some data I measured from the two special editions of the Lumintop Tool AAA. My Tool Ti is a Reylight variant with an inverted mode switching (L-M-H). The Copper one is from Massdrop with the stock mode order (M-L-H).

The Ti has been in use for some time, so the tailcap capacitor has had to time to properly charge and activate the high mode. Some interesting findings were made especially in the highest mode. The Ti seems very inefficient compared to the Copper. The problem lies in the driver or the titanium body, since the copper version works well with the electronic tailcap from the Ti.
UnVnBwK.jpg


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The copper version is a bit longer at 81,9 mm. Ti clocks in at 73,9 mm. Width is closer at 14,7 mm (Ti) and 14,4 mm (Cu). Copper is of course significantly heavier at 34 g vs. 23 g for the Ti.

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The Ti's electronic switch is flush to the tailcap and very quiet. Straight from the factory, its microcapacitor is empty and the high mode doesn't work. After a day or so with a battery inside, it is charged.

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The Tools lego just fine. Copper body with the titanium tailcap is my favorite to edc even though the other variation looks great.

Measurements
Please note: lumen measurements are only rough estimates
My diy 30 cm integrating styrofoam sphere has been calibrated using a Fenix E05 on high with manufacturer’s claim of 85 lumens. Verified with an Olight S10 that has been measured with a Labsphere FS2 integrating sphere by valostore.fi. Results may be more inaccurate with especially throwy or floody lights.

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The Ti has more output at 0 seconds but it steps down after about two minutes to Cu levels. The Copper one has a marginally tighter beam and therefore higher beam intensity (after the Ti's stepdown). The differences are not visible. There's no PWM at any level. Copper tool also is significantly more efficient at high. It produces 70 % more total lumen hours on high. On mid the difference is gone. Without a cooling fan the Ti overheats and starts flashing the output at 12 minutes. Copper works much better because of its higher mass and heat conductivity.

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On medium the lights are comparable. There's really no difference in the total lumen hours.

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When the Copper Tool is fitted with the electronic Ti tail switch, the efficiency drops just a bit. Even the slightest variation in battery capacity is probably bigger than the actual difference here.

Color rendering (light quality)

For spectral information and CRI calculations I have an X-rite i1Pro spectrophotometer with HCFR for the plot and ArgyllCMS spotread.exe for the data. For runtime tests I use spotread.exe with a custom script and a i1Display Pro because it doesn’t require calibration every 30 minutes like the i1Pro.

Explanation of abbreviations
CCT = correlated color temperature, higher temperature means cooler (bluish)
CRI (Ra) = color rendering index consisting of 8 different colors (R1-R8), max value 100
CRI (R9) = color rendering index with deep red, usually difficult for led based light sources, max value 100
TLCI = television lighting consistency index, max value 100
CQS (Qa) = Proposed replacement for CRI, RMS average of 15 color samples
CRI2012 (Ra,2012) = Another proposed replacement for CRI, consists of 17 color samples
MCRI = Color rendering index based on the memory of colors or 9 familiar objects
x,y = coordinates on a CIE 1931 chart

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This is where the Nichia 219B shines. Both lights have a CRI of over 90 and a great neutral white tint. No green/magenta cast anywhere in the beam either as shown below.

Tint and beamshots

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Tint in different brightness modes. No visible difference between the lights or modes.

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Nice even beam with no discoloration in the corona or spill. Same goes for both lights.

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Last edited:

snowlover91

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Great work and excellent review, thanks for sharing these results with us! I love seeing your reviews since they're straight to the point, informative and give excellent CRI and lumens data. Any idea why the copper version is more efficient? Is it maybe a combination of a different driver being used, better thermal properties and the different switch perhaps?
 

run4jc

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Very nice. I own both of these exact models and love them both. I even enjoy the XPG2 version that Lumintop sent me. Your review is outstanding and the effort and information are both greatly appreciated!!

:twothumbs
 

Ladd

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Thanks for the review. Rey certainly hit a home run with the Ti Tool. The UI is perfection, as is the switch and tint.
 

Wendee

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Thanks for these measurements, maukka! I've had my ReyLight Tool Ti for a couple of days. I love the flashlight but I did notice it gets warmer than my other small lights (I expected that, since it's titanium).

"Ti overheats and starts flashing the output at 12 minutes". Yikes! I guess I haven't run mine for a full 12 minutes. Would I damage the flashlight if I let it run on high for that long?
 

maukka

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Thanks for these measurements, maukka! I've had my ReyLight Tool Ti for a couple of days. I love the flashlight but I did notice it gets warmer than my other small lights (I expected that, since it's titanium).

"Ti overheats and starts flashing the output at 12 minutes". Yikes! I guess I haven't run mine for a full 12 minutes. Would I damage the flashlight if I let it run on high for that long?

I did my tests with the lights standing on their own pointing downwards. If you held the light tightly in your hands, I'm sure it would be okay. If it got too hot, you would just turn it off before any damage could occur. And your hand also acts as a heatsink so it wouldn't get so hot in first place.
 

Wendee

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I did my tests with the lights standing on their own pointing downwards. If you held the light tightly in your hands, I'm sure it would be okay. If it got too hot, you would just turn it off before any damage could occur. And your hand also acts as a heatsink so it wouldn't get so hot in first place.

Thank you maukka. I'll be sure to keep the light in my hand if using it on high mode (I won't set it down on a table, just in case). I'm glad I saw your post. Thanks again! :)
 

saypat

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as well as the review, I loved the photos! Nice camera/lens?
 

staticx57

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Excellent review. Two of my favorite lights so it is really nice to know so much more about them.
 

jon_slider

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Copper tool also is significantly more efficient at high. It produces 70 % more total lumen hours on high. On mid the difference is gone. Without a cooling fan the Ti overheats and starts flashing the output at 12 minutes. Copper works much better because of its higher mass and heat conductivity.

y2Zi9Yk.png


ynPnnfL.png

maukka, I love your posts! Thanks. You may enjoy using the stainless clip from your TiTool on your copper Tool.. they do swap also.

Maybe conductivity differences accounts for the 70% longer runtime of the copper tool? Thats a surprisingly large difference, until I look at the specs:

electrical conductivity
copper 100%
aluminum 61%
brass 28%
titanium 3% (Ti data from here)


thermal conductivity
copper 100%
aluminum 53%
brass 29%
titanium 6%

copper conducts heat 16 times better than Titanium, and
copper conducts electricity 32 times better than Titanium.

Im still quite surprised that the copper tool on high has 70% longer runtime than the TiTool. Thanks for the enlightening observations.

 

Wendee

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[...]
thermal conductivity
copper 100%
aluminum 53%
brass 29%
titanium 6%

copper conducts heat 16 times better than Titanium [...]

Thanks for posting this information jon_slider. :)
I knew which metals placed where but I didn't know the percentages compared to copper. Wow, now I understand why copper flashlights are so popular. I'll keep the data you posted in mind while picking out lights. Thanks again!
 

gunga

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Which titanium Jon? Grade 2 (commercially pure) has better heat transfer but is quite soft. Grade 5 has poor heat transfer but is much tougher, harder to machine and considered more "boutique" for flashlights.
 

MAD777

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Yesterday another fantastic review! Makes me want a copper TOOL to keep my aluminum TOOL company. The TOOL is one of my favorite flashlights.
 

samgab

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I just ordered, and am eagerly awaiting both of these excellent little lights. All of my flashlights to date have been various iterations of CREE emitters, these are my first with Nichia 219B emitters. I'm really impressed by the CRI results, especially in the R9 value. I see now why they're so popular among the tint aficionados!
 

bmstrong

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I'd like to find out the grade of Ti used in these lights. I find it very hard to believe that it's 6/4.
 
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