Emisar D4S review

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Geuzzz
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If it was a 21700 format I would be all over this, but I think the fat tube makes it look a bit out of proportion. Really liking the aux leds and the higher regulation though.

severide
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This looks awesome! I love where it sits wrt size compared to the others. Thanks for taking the time to share this before your trip. Very much appreciated!

edit: agree with above about 21700. The more lights that start using that cell, the better imo.

Soldier
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fireblade893 wrote:
Is it just the optic that make it more throwy than the D4?

If so where can I get different optics for my D4?

Of course it is the optic .The Leds are the same.

http://www.mtnelectronics.com/index.php?route=product/product&path=68_69...

You have to get the 10621 for more Throw it is like the Triple 10507.

But use it only with the new MCPCB not with the old one.

pinkpanda3310
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I kinda haven’t been interested in 26650 lights of late but this one has piqued my interest Cool

AgentWhiteBread
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Sorry if I missed it but does it accept flat top cells? There’s a nice KeepPower 5,950 mAh 26650 cell on ilumn.

https://www.illumn.com/batteries-chargers-and-powerpax-carriers/26650-ke...

G0OSE
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That’s only 10A though, I think this beast will want more like 20A+ (40 max) ? I could be wrong though. Also it’s protected which won’t work if it’s like the D4.

CmdrKron
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Did I miss any mention of a release date and where they can be had? Possible to pre order? I want one!

Newlumen
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CmdrKron wrote:
Did I miss any mention of a release date and where they can be had? Possible to pre order? I want one!

Did you read the post #1?

So I’ll just end things here and wait for production models to cover themselves up.
djozz
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AgentWhiteBread wrote:
Sorry if I missed it but does it accept flat top cells? There’s a nice KeepPower 5,950 mAh 26650 cell on ilumn.

https://www.illumn.com/batteries-chargers-and-powerpax-carriers/26650-ke...


From the first post, top battery contact:

CmdrKron
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I read the 1st post. It just says it’s a preproduction model. Didn’t know if someone maybe had more info than that. I guess we’ll just have to be patient for a while.

BROODMASTER
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Geuzzz wrote:
If it was a 21700 format I would be all over this. Really liking the aux leds and the higher regulation though.

 

26650 or 21700... This is what I've been looking for!

h

atbglenn
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I want one to complete the set. To be honest, I’m not wild about auxiliary blue LED’s. At least I can disable them.

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hIKARInoob wrote:
How do you reflow the aux leds? They’re so tiny it must be hard so know the orientation or not? Also quite interesting it will be available in green (again), very much to my liking. Cool

That looks pretty easy to me, since they’re on a separate board. I’m pretty sure those are 0805-sized LEDs, same as most of us are already used to using to build lighted tailcaps and switches. So just pull that whole secondary board out, toss it on your hotplate or stove top or whatever other reflowing option you’re using, and apply heat. When the solder flows just sweep that whole pile of cyan emitters into the floor and drop on 16 new ones of your choice. Polarity is usually pretty well marked on those too, and the board has polarity marks in the pics. There’s even a 220 ohm resistor sitting there that can be swapped for other values to adjust brightness, if your new color is more/less efficient than the cyan. I love it!

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The 2nd MCPCB for auxiliary leds is ingenius! However, I don’t want blue LEDs because according to so many scientific articles, being exposed to blue lights at nighttime affects sleep, not good for eyes, and is actually carcinogenic. That’s why the newer Iphones and other smartphones come with blue-light filter options. More reddish lights and colors on the other hand is beneficial. I’m wondering if Hank would consider offering warm white or pinkish auxiliary led options or at least sell boards with them so we can swap it in. Since this seems like a good bedside EDC, I think having the right color auxiliary led for that purpose would be helpful.

chinooker
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hope the green is original version

KawiBoy1428
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SKV89 wrote:
The 2nd MCPCB for auxiliary leds is ingenius! However, I don’t want blue LEDs because according to so many scientific articles, being exposed to blue lights at nighttime affects sleep, not good for eyes, and is actually carcinogenic. That’s why the newer Iphones and other smartphones come with blue-light filter options. More reddish lights and colors on the other hand is beneficial. I’m wondering if Hank would consider offering warm white or pinkish auxiliary led options or at least sell boards with them so we can swap it in. Since this seems like a good bedside EDC, I think having the right color auxiliary led for that purpose would be helpful.

Yeah I don’t like blue either, I have flashbacks from when I was a kid shopping with my moms and I got trampled during one of those K-Mart Blue Light Specials, oh the Horror of it still remains…Pink reminds me of Cotton Candy…that I was eating when I flew off the Tilt-A-Whirl at the school carnival so that’s no good either…RED…. Facepalm

KB1428 “Live Life WOT”

PBWilson
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Will XP-L HI and Nichia 219c be the only options?

I don’t have another idea to throw into the mix, but you mentioned only those two in your review.

Do you think that the extra size will be a better match, heat-wise for Nichia?

DB Custom
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Might just have to carve out a replacement battery tube for it so I can make use of the iJoy 21700’s I have here…

I DO have a birthday coming up soon! Big Smile

Yohan110
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This looks like it will be much more practical then the D4. What size are the aux leds and do you think it would be possible to reflow new ones of different colors? Also, is there any chance you could add the ability to turn off mode-memory on the firmware?

bansuri
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SKV89 wrote:
The 2nd MCPCB for auxiliary leds is ingenius! However, I don’t want blue LEDs because according to so many scientific articles, being exposed to blue lights at nighttime affects sleep, not good for eyes, and is actually carcinogenic. That’s why the newer Iphones and other smartphones come with blue-light filter options. More reddish lights and colors on the other hand is beneficial. I’m wondering if Hank would consider offering warm white or pinkish auxiliary led options or at least sell boards with them so we can swap it in. Since this seems like a good bedside EDC, I think having the right color auxiliary led for that purpose would be helpful.

From the review: “on the low output mode, they’re close to the brightness of tritium vials”
I wouldn’t worry too much about cancer or affecting your sleep if you use the low setting.
Very handy for camping or if you’re sleeping someplace other than home and you don’t keep your light on a lanyard hanging from your wrist.
Also, current science says coffee is good for you, check back in a month, who knows?
If the Cyan isn’t a favorite maybe he’ll offer other colors or maybe have them match/coordinate with the anodizing colors?

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DB Custom wrote:
Might just have to carve out a replacement battery tube for it so I can make use of the iJoy 21700’s I have here…

It does seem very silly not to make the 26650 tube a few mm longer, so it could take a 21700 with a sleeve.

I’m not convinced the 21700 is going to become mainstream any time soon, but if making a 26650 torch today, it’s the obvious thing to do. Maybe it has already been done ?

But maybe Hank’s springs aren’t good enough to take up the slack. If so a small spacer or magnet would fix that. Such as the ones that Jaxman makes to interconnect flat-top 26650s.

This sort of thing: https://www.aliexpress.com/store/product/Connector-for-flat-battery-seri...

I still prefer 26650, for too many reasons to mention.

But a torch that could take 18650, 26650 or 21700 interchangeably would be perfect.

Hank, please take note before finalising the design.

robk
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Very, very nice work Thank you. I would add my voice to the suggestion to use other than cyan aux LEDs, and eventually to add a 21700 option. Meanwhile, when and how much?
djozz
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I like red and warm leds for this better too but..

SKV89 wrote:
However, I don’t want blue LEDs because according to so many scientific articles, being exposed to blue lights at nighttime affects sleep, not good for eyes, and is actually carcinogenic. That’s why the newer Iphones and other smartphones come with blue-light filter options.

.. as a guard of common sense: looking at popular articles without proper references only, this carcinogenic story is repeated everywhere, it has gained a huge following and that of course has its effect on phone companies who want to sell rather than follow the truth. But if you look for an actual scientific background there is some backup for blue light affecting melatonin levels (not a huge effect) but no proven relation whatsoever between blue(ish) light and cancer.
DB Custom
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This kind of bogus blue light scare is why I’m not on here much anymore. Ridiculous.

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Seriously doubt any ill effect from those wee cyan LED’s. Great idea.

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What a great light. The auxiliary LED’s are a fantastic idea. I don’t have any 26650 cells, and I’d worry about the magnet near automatic watches, but other than that, everything about it makes it a must have.

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Yes…that purple!

When I'm spending mony foolishly, I like to do it wi$ely...

I have all the flashlights I need, but not as many as I want...

 

dmsoule
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There have been some excellent lights recently released in the 26650 format – Thrunite, Lumintop, and now Emisar. I’m glad because I have lots of these cells, and it is a comfortable size for a hand grip. Too bad none of the big four battery cell companies are making these. 21700 may become the standard eventually, but probably still a few years off.

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Sure I want one!
Hope Hank will sell the aux led pcb separately. I possibly buy 3-4 and make different led colors or multicolor boards to swap them as I want.

Newlumen
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What are the benefit of using 21700 on the emisar d4s??

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