TK's Emisar D4 review

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ToyKeeper
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My unexpected Meteor measurement got me curious, so I ran some tests…

On turbo with full cells, it measured 4848 lm in my light box. Significantly less than the 7450 lm it’s rated at for XP-G2 3D emitters. Then I did a runtime test with it on turbo in cold water.

Afterward, I recharged the cells and ran the same test on my D4-219c. Would have used XP-G2, but that one is my dev host and is basically a floating head with the brains floating outside its body. So, 219c was a lot easier to test. I ramped it to 1212 lm in my light box (1/4 of the Meteor, since it has 1/4 the battery capacity), then put it in cold water and started the test. Well, as close to 1212 lm as I could get it quickly, but it was actually about 1250 lm.

Here are the two runtime graphs:

I didn’t let either one run long enough to shut off completely… just long enough for LVP to give a warning. After each test, the cells probably still had enough power to keep going for quite a while before the light would actually shut itself off.

Voltages:

  • M43: 4.17V start, 3.10V end
  • D4: 4.15V start, 3.17V end

Edit: I’ve been meaning to make a thing to combine graphs… so here are the two merged.

Note, this is nowhere near maximum power on the D4. It’s set to be 1/4 as bright as maximum power on my Meteor. It also isn’t directly comparable since they used different emitters. The Meteor’s XP-G2 emitters are significantly more efficient, and its driver should be too. But I hope this gives an idea of how the runtime graphs compare at a similar amount of lumens per cell.

steel_1024
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EMISAR D4 change to 219B V1 CRI/R9:9080

moon

Very small

219C 4000K 9050、219B 4500K 9080、XP-G3 5000K 90??

Sorry for my poor english.

Hikelite
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@steel_1024
That XP-G3 puts out all kind of tints.

Hank Wang
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I would like to show you that the triples and quads from Carclo have an element that is present on each optic as it seems some people are under the impression their optic has a defect, it is the way the optics are being manufactured. This can also be seen in the datasheet.

https://intl-outdoor.com, Noctigon, Emisar, flashlight components.

maukka
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Running above the 100% 7135 cuts down on the efficacy 20 %.

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ToyKeeper wrote:
My unexpected Meteor measurement got me curious, so I ran some tests… On turbo with full cells, it measured 4848 lm in my light box. Significantly less than the 7450 lm it’s rated at for XP-G2 3D emitters.

That’s odd. You first had 2818 lumens at 3.83V. There’s some funky stuff going on here…

hIKARInoob
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maukka wrote:
Running above the 100% 7135 cuts down on the efficacy 20 %.

Doesn’t this depend on the output? The higher the output (you chose 370 lumens), the bigger the PWM contribution of the FET, so efficacy should go down further?

fedcas
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thanks for the review and for your work Wink

hIKARInoob wrote:
maukka wrote:
Running above the 100% 7135 cuts down on the efficacy 20 %.

Doesn’t this depend on the output? The higher the output (you chose 370 lumens), the bigger the PWM contribution of the FET, so efficacy should go down further?

I agree on that, basically it’s a linear combination between the 7135 and the fet, so I expect the efficiency to lower continuously down to the direct drive efficiency

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maukka wrote:
Running above the 100% 7135 cuts down on the efficacy 20 %.

!http://i.imgur.com/8nfZvg4.png!

Thanks for this!

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Thanks to all involved in the creation of this little monster …
Arrived today:

I will definitely use it with Sanyo GA( Is more than enough for me) . It is a hand burner in 15 seconds, even after the step down …. I will have to reset the “thermostat” of the flashlight Smile I love it !!

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D4EVIL inside indeed! I like it

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hIKARInoob wrote:
ToyKeeper wrote:
My unexpected Meteor measurement got me curious, so I ran some tests… On turbo with full cells, it measured 4848 lm in my light box. Significantly less than the 7450 lm it’s rated at for XP-G2 3D emitters.

That’s odd. You first had 2818 lumens at 3.83V. There’s some funky stuff going on here…

I think the light’s dark front area may have eaten some lumens compared to a light which doesn’t have that. After recalibrating for that effect, I think it may have been doing 3241 lm instead of 2818.

The graph a few posts ago (with 4848 lm) was done after recalibration, and both lights were measured with the same setup to keep things consistent.

I wanted to see how the shape of the output curves compared at a similar level of power per cell when thermal regulation wasn’t a factor. It seems the Meteor is partially regulated at first, then drops off starting at a fairly high voltage. This continues until it gets down to a pretty low level, and then it blinks to indicate low voltage. The D4 has more of a typical direct-drive (ish) curve until it detects low voltage, at which point it blinks and steps down to a stable regulated level. Although not shown in the graph, it then stays until voltage is low again, and repeats the blink-and-drop. After doing this enough times to reach the lowest level, it finally shuts off. Based on other tests, it looks like the first stepped-down level would probably last 30-40 minutes, extending off the right edge of the graph, and then the next level might take even longer, so I didn’t wait for those.

The Meteor has more area under its curve in this test, though it’s not clear how much of that is due to a more efficient driver vs more efficient emitters (D4 used 219c, which is significantly less efficient in this configuration). But while the Meteor was running at maximum output the whole time, the D4 was at only 1/3rd its maximum power. It’s a bit like comparing a commuter car to a race car. They are good at different things.

BeardedRaleigh
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Got mine and a couple others today.

Man this thing gets hot in literally 2 seconds. May have to get the Xp-g2.

They look good together.

Slow is smooth, smooth is fast.

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Highest it got was 128f.

Slow is smooth, smooth is fast.

saypat
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figuring those O-Lights aren’t getting a whole lot of attention Wink

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BeardedRaleigh wrote:
They look good together.

I’d say they look absolutely fabulous together.

I honestly can not stop touching the D4. Fiddling, fiddling, fiddling… fiddle.. fiddling, fiddling, fiddling… Hold on gonna get some coffee.
(1 minute later) I’m back. Fiddling, fiddling, fiddling…

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saypat wrote:
figuring those O-Lights aren’t getting a whole lot of attention Wink

I do like the simplicity of the charging. Fit and finish is great. Good UI. HAS NOTHING on the power of the D4 though.

Slow is smooth, smooth is fast.

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saypat wrote:
figuring those O-Lights aren’t getting a whole lot of attention Wink

For a good time, press the S30R tailcap against some steel wool.

… and you thought Olights aren’t exciting. Big Smile

specialk
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Got my D4s in the mail today. A 219c and a xpl-hi both 5000k. Perfect edc light. And ToyKeeper did a excellent job on the ui v2 tweaks.

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ToyKeeper wrote:
saypat wrote:
figuring those O-Lights aren’t getting a whole lot of attention Wink

For a good time, press the S30R tailcap against some steel wool….

… and you thought Olights aren’t exciting. Big Smile

Wow! It doubles as an emergency fire-starting device! Evil
hank
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Quote:
press the S30R tailcap against some steel wool

Caution, anachronism penalty warning, do not carry the S30R in the pockets of your chainmail suit

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Firelight2 wrote:
ToyKeeper wrote:
saypat wrote:
figuring those O-Lights aren’t getting a whole lot of attention Wink

For a good time, press the S30R tailcap against some steel wool….

… and you thought Olights aren’t exciting. Big Smile

Wow! It doubles as an emergency fire-starting device! Evil

You guys didn’t know that? Says it on the website.

Slow is smooth, smooth is fast.

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Got shipped from intl-outdoor (219c) on july 31, paid for a tracking (hk post), until now, the tracking is not found… Ordered another one (xpl hi) from intl-outdoor 2 days ago, paid for the tracking, didn’t received tracking number, send 2 emails, no response. I am a little bit worried about intl-outdoor,

Any advice?

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ndompierre wrote:
Got shipped from intl-outdoor (219c) on july 31, paid for a tracking (hk post), until now, the tracking is not found… Ordered another one (xpl hi) from intl-outdoor 2 days ago, paid for the tracking, didn’t received tracking number, send 2 emails, no response. I am a little bit worried about intl-outdoor,

Any advice?

I added tracking the next day. Took a few days to show up but worked great.

Slow is smooth, smooth is fast.

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I got my tracking number after 5 days of order placed and shipping notice on the 10th day, i should received my D4 today if not then it should be on Monday. So total transit time 14 days not bad. Could be the worst weekend for me Ughh

Hank is a trusted seller here, dont worry you’ll get your D4 it just take time.

ndompierre wrote:
Got shipped from intl-outdoor (219c) on july 31, paid for a tracking (hk post), until now, the tracking is not found… Ordered another one (xpl hi) from intl-outdoor 2 days ago, paid for the tracking, didn’t received tracking number, send 2 emails, no response. I am a little bit worried about intl-outdoor,

Any advice?

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I just noticed that Richard is largely out again.

But the shocking thing is, that there are no reviews on his web site. Now that is a crime. Wink

Come on team lets show the love.

(“It’s good that most people can’t remember their previous lives. Otherwise
things would be a lot more complicated than they already are.”
Ajaan Lee Dhammadharo)

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Ok my D4 might arrived on Monday, the mail man came today and only bring different order so No D4 for the weekend Crying got to wait till Monday.

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Mine reached my home yesterday. Grey with 219C. Get scorching hot in 20s, that thing is insane !
The UI is a joy to use, I set the temp setting and tested all the little details of TK UI. A true gem for 40 bucks !

"-X3-, is there any place in your house without a flashlight ?" 

My Flashlight public album (mods, emitter swaps, eye candy)

My reviews channel (French language, Olight, Thorfire, Sofirn, Lumintop : 60+ lights tested)

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M4DM4X blog, saves you $$$ 

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rizky_p wrote:
I got my tracking number after 5 days of order placed and shipping notice on the 10th day, i should received my D4 today if not then it should be on Monday. So total transit time 14 days not bad. Could be the worst weekend for me Ughh

Hank is a trusted seller here, dont worry you’ll get your D4 it just take time.

ndompierre wrote:
Got shipped from intl-outdoor (219c) on july 31, paid for a tracking (hk post), until now, the tracking is not found… Ordered another one (xpl hi) from intl-outdoor 2 days ago, paid for the tracking, didn’t received tracking number, send 2 emails, no response. I am a little bit worried about intl-outdoor,

Any advice?

https://www.youtube.com/watch?v=4cmffLlkwxc&index=39&list=PL62498D740F67...

patmurris
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X3 wrote:
Mine reached my home yesterday. Grey with 219C. Get scorching hot in 20s, that thing is insane ! The UI is a joy to use, I set the temp setting and tested all the little details of TK UI. A true gem for 40 bucks !

When did you order yours?

I’m expecting the exact same one from intl-outdoor (ordered jul 27) and a black xpl (ordered aug 1) and the wait for this light is killing me.
I usually avoid looking at the tracking but can’t help it. The nichia is apparently in the custom’s Roissy hub since the 9th… i hope it wont get stuck there for a week or more as it happened before. It’s only been two weeks since order so there’s nothing unusual so far. Maybe today or saturday… Tired

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