Emisar D4S review

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ToyKeeper
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Just a quick reminder: It may be feasible to mod a D4S to increase its peak output from ~4800 lm to ~6000 lm, but it’s not really going to be a visible difference. It’s mostly a thing to do for educational purposes, or for the joy of doing it, and not for any practical benefit.

Definitely go ahead and max out the lumens if you like; it’s great fun. It’s just not going to be noticeable without a lux meter.

Turby3Pots
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I got an XP-L HI 1A in green from MTN that lacked a magnet best I can tell.

Richard said he checked as many as he could for magnet.

DB Custom
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But that’s why I like going for 10,000-12,000 TK, so it’ll be noticeable! Silly

strayz
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DB Custom wrote:
But that’s why I like going for 10,000-12,000 TK, so it’ll be noticeable! Silly

Dale you start pushing it hard enough to get 8000+ we are going back to the 20-30 sec run time like the D4 again.

DB Custom
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So it’s official, I ordered a green D4S earlier today from Richard. Big Smile

Wait, what? What are you saying strayz? You mean, lights are supposed to actually run longer than 10 seconds at a time? Shocked

Gebe
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ToyKeeper wrote:
Just a quick reminder: It may be feasible to mod a D4S to increase its peak output from ~4800 lm to ~6000 lm, but it’s not really going to be a visible difference. It’s mostly a thing to do for educational purposes, or for the joy of doing it, and not for any practical benefit.

Definitely go ahead and max out the lumens if you like; it’s great fun. It’s just not going to be noticeable without a lux meter.

TK, for such a highly talented modder and flashlight techie, I always enjoy your very simplified comments on complicated things that us non techies can understand. Thanks!

djmcconn
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Gebe wrote:
ToyKeeper wrote:
Just a quick reminder: It may be feasible to mod a D4S to increase its peak output from ~4800 lm to ~6000 lm, but it’s not really going to be a visible difference. It’s mostly a thing to do for educational purposes, or for the joy of doing it, and not for any practical benefit.

Definitely go ahead and max out the lumens if you like; it’s great fun. It’s just not going to be noticeable without a lux meter.

TK, for such a highly talented modder and flashlight techie, I always enjoy your very simplified comments on complicated things that us non techies can understand. Thanks!

True that.

Newlumen
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Wtf? Didn’t expect this.. it it d4s gray from intl-outdoor..

1_F5962_E2-1830-4625-8_B12-63_D84_CAB1_FC2

Man Without Shadow
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What were you expecting??

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...

 

KawiBoy1428
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Man Without Shadow wrote:
What were you expecting??

Judging by the WTF, certainly not Gray, Highly doubtful Black… I’m going to go with Green…

KB1428 “Live Life WOT

Newlumen
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Man Without Shadow wrote:
What were you expecting??

I was suppose to received one repaired light from skylumen..

I had great experiences with intl-outdoor.. shipped on August 11. Received on August 17. 6 days only.. will buy from intl-outdoor again.

Newlumen
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Same color as d4.

86_CFA40_F-3_D32-4_EA7-98_B6-_A79535_CD1_ECC

Newlumen
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I couldn’t wait for the shockli 26650 to be fully charged.. it is 4.08v and I got 4730 lumen @ turn on. I use Texas ace tube for the lumen specs.

Xpl hi 5000k tint.. big hotspot.. look more into cool white tint.

AgentWhiteBread
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Newlumen wrote:
Man Without Shadow wrote:
What were you expecting??

I was suppose to received one repaired light from skylumen..

I had great experiences with intl-outdoor.. shipped on August 11. Received on August 17. 6 days only.. will buy from intl-outdoor again.

Well hopefully this means mine is arriving soon. Mine also shipped on the 11th and the mailman is probably confused why I’ve been checking the mailbox every day.

Newlumen
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AgentWhiteBread wrote:
Newlumen wrote:
Man Without Shadow wrote:
What were you expecting??

I was suppose to received one repaired light from skylumen..

I had great experiences with intl-outdoor.. shipped on August 11. Received on August 17. 6 days only.. will buy from intl-outdoor again.

Well hopefully this means mine is arriving soon. Mine also shipped on the 11th and the mailman is probably confused why I’ve been checking the mailbox every day.

You will get it tomorrow.. it just take longer to ship from southern california..

Man Without Shadow
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Just hope you don’t hate your new D4s…

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...

 

Newlumen
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Man Without Shadow wrote:
Just hope you don’t hate your new D4s…

Nope.. never.. intl-outdoor knows how to make blf guys happy..

radioshaq
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charles lin wrote:
Received my D4s from MTN today, the size is slightly bigger than I expect!
!{width:85%}https://i.imgur.com/Ly9XFVj.jpg?1!

What light is the second from right?
Newlumen
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Please disregard the old test.. here is d4s xpl hi 5000k with fully charged shockli 26650. It is pushing 5000 lumen.

004_FF902-6_B1_A-4_B47-_BF33-2582_BA53_A385

Farmer Harv
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AgentWhiteBread wrote:
Newlumen wrote:
Man Without Shadow wrote:
What were you expecting??

I was suppose to received one repaired light from skylumen..

I had great experiences with intl-outdoor.. shipped on August 11. Received on August 17. 6 days only.. will buy from intl-outdoor again.

Well hopefully this means mine is arriving soon. Mine also shipped on the 11th and the mailman is probably confused why I’ve been checking the mailbox every day.

Hmmm. Mine is still processing. I wonder if I should be concerned, or just wait patiently.

charles lin
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radioshaq wrote:
charles lin wrote:
Received my D4s from MTN today, the size is slightly bigger than I expect!
!{width:85%}https://i.imgur.com/Ly9XFVj.jpg?1!

What light is the second from right?

DQG Tiny 26650 3th, I think it still entitled to the world’s smallest single 26650 light.
Man Without Shadow
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Hard to go back to “normal” lights with a piece of magic like this in your hands.

UI, form factor, performance and “wow!” factor so satisfying.

Love the blue LED “trits”…nice touch!

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...

 

heatwaves
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Man Without Shadow wrote:
Hard to go back to “normal” lights with a piece of magic like this in your hands.

UI, form factor, performance and “wow!” factor so satisfying.

Love the blue LED “trits”…nice touch!

You are so right. I’m seriously contemplating only buying emisars from now on. I just wished that they pushed up production of more colors, models, and cool add-ons like the blue LEDs.

Newlumen
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How can i change stepped to smooth ramping ?

Man Without Shadow
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when light is on…fast click 3x…

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...

 

Newlumen
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Man Without Shadow wrote:
when light is on…fast click 3x…

Thank you.. i spent 5 minutes trying to switch to smooth ramping.. i was doing three fast click and hold from off..

Newlumen
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I tested three unprotected.

1st. Shockli imr 5500 mah. 5040 lumen.. turbo output maintain strong.
2nd. Liitokala 5000 Mah.. 5000 lumen..
3rd. Efest green imr 4200 mah. 4750 lumen.

I am using shockli imr on my d4s.. it performs great..

JasonWW
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Newlumen wrote:
I tested three unprotected.

1st. Shockli imr 5500 mah. 5040 lumen.. turbo output maintain strong.
2nd. Liitokala 5000 Mah.. 5000 lumen..
3rd. Efest green imr 4200 mah. 4750 lumen.

I am using shockli imr on my d4s.. it performs great..


I did some research on 26650 high drain batteries not long ago:

JasonWW wrote:

Here is another question I was trying to figure out. We know a single 70.2 can pull upwards of 18 amps from a pair of 26650, but what kind of limits would we see trying to power 3 of those emitters?

I looked at the tried and true cyan Liitokala 5000mah (2016), but I don’t think they sell those anymore. The black version is still sold and looks like a good performer. 20A continous and 30A pulse.

The Shockli 5500mah black is a newer battery (2017) and it looks like it is a step up. It’s still 20A continous and 30A pulse. Compared to the Liitokala black it has about 0.10 volt less sag at 20A and about 0.15 volt less sag at 30A.

I’m just learning there is a new Shockli 4300mah (2018) light green that looks aimed at even higher drain use. It is 30A continous and 40A pulse. Compared to the Liitokala black it has about 0.13 volt less sag at 20A and about 0.2 to 0.25 volt less sag at 30A. That’s a huge improvement. This looks to be the cell to use for highest performance.

If anyone has heard of any other new 26650 high drains, let me know.

Edit: It looks like the Ijoy INR26650 4200mAh (Black-Yellow) is a match for it.

The highest drain 26650 might be the Golisi IMR26650 4300mAh (Gold) at 35A continous. Wow.

The Golisi blows away the Shockli 5500mah and Liitokala 5000mah black.

Note: This is all data from HKJ.

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

Click this to go to signature links. I'm still around, just not reading many new threads.

ToyKeeper
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Newlumen wrote:
Man Without Shadow wrote:
when light is on…fast click 3x…

Thank you.. i spent 5 minutes trying to switch to smooth ramping.. i was doing three fast click and hold from off..

I’m curious what people think of the method used for smooth and stepped ramps, and switching between them. Do you use just one, or both? If just one, which? What configurations do you use, and why?

Man Without Shadow
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Smooth ramping is nice just for the pure novelty of it. I guess when I use a flashlight it’s just to light something up in the dark that I’m looking for or to get a better view. Very seldom, if at all, do I need to change the level of light for the few moments that I need it.

Magical lights like these are more show pieces for me and my friends. I can look in the closet with anything. I am almost reluctant to use my showcase lights for fear of damaging them by either a clumsy drop, banging it on something or rattling my keys against it all day.

Mostly I just appreciate all the options and the complicated UI for the craftiness of the programmer and the effort it took to make it work well.

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...

 

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