Emisar D4S review

2439 posts / 0 new
Last post
lionheart_2281
lionheart_2281's picture
Offline
Last seen: 1 day 21 hours ago
Joined: 10/25/2012 - 18:32
Posts: 3132
Location: Brisbane, Australia

Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 × 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?

Sillen
Sillen's picture
Offline
Last seen: 4 hours 31 min ago
Joined: 08/01/2018 - 06:39
Posts: 745
Location: Melbourne, Australia

lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 × 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?

Not Shockli. I’ve got these on the way. Is it worth a dedicated “Batteries shipping to Australia” thread? Maybe someone can run a GB and get a batch of decent sells in via FedEx/DHL and distribute via AusPost? Maybe ask supersports600 if he can get a batch in?

KawiBoy1428
KawiBoy1428's picture
Offline
Last seen: 11 hours 23 min ago
Joined: 04/11/2014 - 18:05
Posts: 4274
Location: The Motor City

lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 x 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?


My battery tube I.D. measures 27.8mm

KB1428 “Live Life WOT

lionheart_2281
lionheart_2281's picture
Offline
Last seen: 1 day 21 hours ago
Joined: 10/25/2012 - 18:32
Posts: 3132
Location: Brisbane, Australia

Sillen wrote:
lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 × 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?

Not Shockli. I’ve got these on the way. Is it worth a dedicated “Batteries shipping to Australia” thread? Maybe someone can run a GB and get a batch of decent sells in via FedEx/DHL and distribute via AusPost? Maybe ask supersports600 if he can get a batch in?

I love the idea of that thread!!!
I’m currently using a Basen in mine:

Just want a battery with higher capacity and known good performance.

Edit: I just messaged this morning Yass (supersports600) and waiting a response, those KP 6000’s are 20A continuous apparently.

lionheart_2281
lionheart_2281's picture
Offline
Last seen: 1 day 21 hours ago
Joined: 10/25/2012 - 18:32
Posts: 3132
Location: Brisbane, Australia

KawiBoy1428 wrote:
lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 x 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?


My battery tube I.D. measures 27.8mm

So it should just fit then, that’s awesome to know, maybe those KP 6000’s are the new king of 26650’s?

ToyKeeper
ToyKeeper's picture
Offline
Last seen: 7 hours 29 min ago
Joined: 01/12/2013 - 14:40
Posts: 10804
Location: (469219) 2016 HO3

The Emisar D4S can fit pretty wide cells. The main limitation is the length.

Newlumen
Newlumen's picture
Offline
Last seen: 1 year 8 months ago
Joined: 05/27/2017 - 00:19
Posts: 2092
Location: United states

lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 × 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?

I don’t see why not. Emisar stated under 69 mm works.

gehrmo
Offline
Last seen: 6 months 4 days ago
Joined: 05/28/2013 - 19:53
Posts: 107
Location: Bribie Island,Australia

lionheart_2281 wrote:
KawiBoy1428 wrote:
lionheart_2281 wrote:
Hi guys,

Looking at getting these 26650’s for this light, but I’m slightly concerned about the dimensions:

Dimensions: 26.65 x 66.55 mm

They seem awfully fat.
The other listed 26650’s is what I’d prefer but can’t find anyone that’ll ship to Australia.

Edit: any Aussies got the Shockli 5500mAh into Aus?


My battery tube I.D. measures 27.8mm

So it should just fit then, that’s awesome to know, maybe those KP 6000’s are the new king of 26650’s?


The keeppower 6000 fit easily but keep going up in price at supersports600.
DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

FedEx brought my new Samsung emitters…

Drumroll please…

My D4S with 4 Samsung LH351D W6 5700K emitters now makes a whopping 7348.5 lumens from a freshly charged LG HG6 20650 cell.

Edit: 21.6A at the tail… single cell record for me I think. Big Smile

Newlumen
Newlumen's picture
Offline
Last seen: 1 year 8 months ago
Joined: 05/27/2017 - 00:19
Posts: 2092
Location: United states

DB Custom wrote:
FedEx brought my new Samsung emitters…

Drumroll please…

My D4S with 4 Samsung LH351D W6 5700K emitters now makes a whopping 7348.5 lumens from a freshly charged LG HG6 20650 cell.

Beamshot. .? Can you show the link where you ordered those led?

Pete7874
Pete7874's picture
Offline
Last seen: 20 hours 14 min ago
Joined: 11/23/2011 - 16:47
Posts: 3480
Location: USA

DB Custom wrote:
My D4S with 4 Samsung LH351D W6 5700K emitters now makes a whopping 7348.5 lumens from a freshly charged LG HG6 20650 cell.

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

Samsung LH351D W6 5000K (I thought I’d ordered 5700K, these are nearly pure white though so I’m happy)

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 3 weeks 1 day ago
Joined: 11/29/2017 - 12:34
Posts: 5608
Location: Canada

Hmmm, you must be pushing at least 8000 raw lumens, probably even 8400 lumens at start up.

What kind of cell are you using? Is it the darn Samsung 30T again?

You must be pushing easily 25A+, or about 28A. Are you using 18AWG spring bypass+direct brass contacts to the driver? That is one dope ass build.

If you can get 7300 lumens out of a single 21700 cell with 4xLH351Ds, I wonder what kind of brightness you could get with 4×18650s out of the Q8.

With W6 bin LEDs, maybe you could get close to 10k lumens out of the Q8 with BeCu springs, 18AWG wire bypasses, a pure copper tailcap, an AR lens, etc. Maybe just maybe, it is possible without resorting to barf tint fest XPL2s.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

16’ from the fireplace, the room is semi dark but heck it’s 2:30 in the afternoon! lol

Moon, showing only in the glass face of the clock…

100% 7135 chip

Turbo

Taken with my i8 with an app running, essentially Aperture priority.

Edit: Here’s the specs on the above pics…
Moon used an aperture of f/1.8, with 1/4 second exposure and ISO 500.
Med used an aperture of f/1.8, with 1/7 second exposure and ISO 80.
Turbo used and aperture of f/1.8, with a 1/30 second exposure and ISO 32.

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

Blue, it’s the LG HG6 20650 cell, solder bump on the driver and your large spring with a 20ga bypass in the tail. 20Ga Teflon leads. Wink

The 30T will do 7624.5 lumens at 23.1A tail. This is using a 12ga solid wire to bridge the battery to tube, not assembled.

Oh, and these ARE W6 binned 5000K emitters, got em today and swapped em into my D4S within the hour. Big Smile

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

Oh, yeah, just remembered, think about this… Anduril’s lightning mode with 7300 lumens! Big Smile

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 3 weeks 1 day ago
Joined: 11/29/2017 - 12:34
Posts: 5608
Location: Canada

Holy crap. That is some mad stuff. I would be scared to hold that power density in my hands.

In relation to this, story time!

As a few of you know, I have an MT09R. I had a brilliant idea of bringing the MT09R on a trip in my bag, along with a 20Ah USB battery pack. Note: I had not locked out the light. This is stupid.

When I was walking , I tripped, and fell down backwards. I was not hurt, but something was still wrong. I walked for about 30 seconds, until I noticed some massive smoke coming from the backpack.

IT WAS ON FIRE. I then remember I had a lithium ion battery pack inside of the backpack! I then quickly took it out, and killed the fire with water and a damp microfiber cloth. The smoke residue is still on the MT09R’s lens, as it is very hard to remove 100%. I’m probably at 95% cleaned, but there is still some smoke on it. Luckily, the battery pack was just a bit warm, and nothing had blown.

TLDR: Always lock out your monster lights. Otherwise, bad things will happen because of Murphy’s law.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

ToyKeeper
ToyKeeper's picture
Offline
Last seen: 7 hours 29 min ago
Joined: 01/12/2013 - 14:40
Posts: 10804
Location: (469219) 2016 HO3
DB Custom wrote:
Oh, yeah, just remembered, think about this… Anduril’s lightning mode with 7300 lumens! Big Smile

That sounds fun. Smile

Just be sure to warn people not to look directly at the light. It can give a false sense of safety when it’s rumbling along at a low level between big flashes.

ToyKeeper
ToyKeeper's picture
Offline
Last seen: 7 hours 29 min ago
Joined: 01/12/2013 - 14:40
Posts: 10804
Location: (469219) 2016 HO3

DB Custom wrote:
Turbo


Can barely even tell there’s a sun outside. You made it bright enough to overpower the daylight.

Pete7874
Pete7874's picture
Offline
Last seen: 20 hours 14 min ago
Joined: 11/23/2011 - 16:47
Posts: 3480
Location: USA

“Brighter than the Sun” … a new D4S tag line. Smile

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

Been doing some testing, here’s what I’ve learned. The MOSFET Hank chose actually outperforms a Vishay-Dale SIR404DP. Wink Also, 20ga Teflon coated wires meet or exceed 18ga Turnigy silicone coated wires. Wink The 20ga Teflon wires are actually easier to install so they are probably the way to go with the caveat that you must be more careful as they are very stiff and can rip pads off the driver if you don’t do your part. Wink

So, around 7300 lumens is the ceiling for the LG HG6 20650 cell. (Normally $11.00, they’re $6.97 as of now) This is a good thing though, as this cell was on sale at IMR Batteries for some $6 each recently. Smile

I used a 7/8” round rasp file to cut down the ridges (4 of them) inside a clear plastic 26500-18650 spacer, this allows easy use of the 20650 cell and prevents ratting around. Wink

Ceiling really needs to be set lower for the monster set-up, it will get hot faster than the temperature step-down can sense it. I have it at 27 steps below top (I think) and it makes 2535.75 lumens at this ceiling on the ramp. The 100% 7135 chip level is 507 lumens.

Color on this W6 Samsung emitter is quite pleasant, like it a lot.

lowprofile
Offline
Last seen: 2 years 11 months ago
Joined: 08/25/2018 - 09:36
Posts: 14
Location: Canada

Toykeeper:

First of all, your state machine firmware is exemplary. I will be studying it to improve my own microcontroller projects. Thank you.

Second, if you are looking for UI improvements, I would like to suggest to you that you look into the notion of intents. That is, a click has a different meaning depending on what has happened previously. This might be a simple addition to a state machine.

Recently a user asked about the delay time in turning off the light. The FSM does not know that the user wants to turn off the light, so there is a delay while it waits for future button presses. I suggest that there could be some sort of other “input” timer. If the user has not input something in X seconds, then the next input is interpreted differently. Similar to how the up/down ramp functionality works.

Maybe if the light has been on continuously for >120 seconds, the next press could dim the light to 0 (off) after the first press but if the button is pressed again, then it moves to other functions. I hope I have been clear enough for others to understand.

---
Emisar D1S, D4S, Convoy C8, many many lesser lights
You have to squeeze a lot of lumens if you want to make lumenade

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 3 weeks 1 day ago
Joined: 11/29/2017 - 12:34
Posts: 5608
Location: Canada

Ok wut?!

I’d like to know where he got it so I can order 10pcs.

Also, how could 20AWG Teflon wire be actually more conductive than 18AWG silicone wire? How does it work? The copper strands are not only larger, unless using less strands means a lower risk of strands coming off and upping resistance?

Neat stuff Big Smile

And yeah, we are limited by storage capacity of the MCU. Unless you want to strap on a bare NAND package, if you actually could Silly

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

lowprofile, keep in mind that there are capacity limitations in the MCU. Wink Some things might be good ideas, implementing them in the avialable space can be the real trick.

Edit: ToyKeeper is truly exceptional in weighing the requirements of the community, if 4000 lights are selling, how many would want idea 1 or idea 2? Just because some think it’s critical to have something implemented they may be a scarce minority in the overall big picture. It becomes truly difficult to average out the requests and audible needs (those that have specifically had something in mind) and it can be quite taxing figuring out just what will make a light epic vs what will kill the sales.

We’re a rather manic bunch, it would seem. Wink

Agro
Agro's picture
Online
Last seen: 2 min 37 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6868
Location: Ślōnsk

DB Custom: what is the Hank’s FET? Maybe the Lexel’s one would be even better?

There are also 2 efficiency tricks that I haven’t seen tried (and measured):

  • glue TIR and glass together with optical adhesive to eliminate reflections on the boundary
  • paint the head, bezel, PCB white on the inside to turn some losses into flood.

DB Custom
DB Custom's picture
Offline
Last seen: 2 weeks 4 days ago
Joined: 01/13/2013 - 22:28
Posts: 20733
Location: Heart of Texas

Pretty sure Lexel recommended the FET Hank used. Infineon I believe it is. It’s not very much better than the 404 but it is slightly more output, only about 200 total lumens but hey, when you’re chasing em you chase ALL of em! Smile

Optical adhesive, tricky stuff that. How are you going to set it? The lens blocks UV, the optic material blocks UV, can’t get UV light deep enough between the two to set the adhesive…

Paint the interior of the head with what, oven paint? Mine gets HOT! Silly (got some 80 Watts going in this smallish light)

zeroflow
Offline
Last seen: 9 months 1 week ago
Joined: 05/23/2017 - 02:15
Posts: 189
Location: Austria

lowprofile wrote:

Recently a user asked about the delay time in turning off the light. The FSM does not know that the user wants to turn off the light, so there is a delay while it waits for future button presses. I suggest that there could be some sort of other “input” timer. If the user has not input something in X seconds, then the next input is interpreted differently. Similar to how the up/down ramp functionality works.

Maybe if the light has been on continuously for >120 seconds, the next press could dim the light to 0 (off) after the first press but if the button is pressed again, then it moves to other functions. I hope I have been clear enough for others to understand.

Each state gets an argument passed where you get the count how long (ticks) you are in this state.
I think you are free to add it with a new compiler switch and upload the changes for TK to merge into Anduril.

Eraursls1984
Offline
Last seen: 5 months 2 weeks ago
Joined: 11/08/2014 - 01:44
Posts: 212
Location: North Florida

BlueSwordM wrote:
And yeah, we are limited by storage capacity of the MCU. Unless you want to strap on a bare NAND package, if you actually could Silly

What options are there to increase storage capacity?
Agro
Agro's picture
Online
Last seen: 2 min 37 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6868
Location: Ślōnsk

DB Custom wrote:
Pretty sure Lexel recommended the FET Hank used. Infineon I believe it is. It’s not very much better than the 404 but it is slightly more output, only about 200 total lumens but hey, when you’re chasing em you chase ALL of em! Smile

Optical adhesive, tricky stuff that. How are you going to set it? The lens blocks UV, the optic material blocks UV, can’t get UV light deep enough between the two to set the adhesive…


There are adhesives that don’t need UV curing.

DB Custom wrote:
Paint the interior of the head with what, oven paint? Mine gets HOT! Silly (got some 80 Watts going in this smallish light)

This one is easy. Heater paint.
zeroflow
Offline
Last seen: 9 months 1 week ago
Joined: 05/23/2017 - 02:15
Posts: 189
Location: Austria
Eraursls1984 wrote:
What options are there to increase storage capacity?

Use another microcontroller.

But there are a few problems with that:

- The Attiny85 is the biggest SOIC-8 ATtiny
- Small size
- Hand-solderable for DIY (so certainly no BGA and probably no QFN)
- Need to port existing firmware too it

I did a short search for matching ARM processors, but I couldn’t find a good and cheap replacement. Biggest hurdle is the package as there are small MCUs but they are made for industrial soldering processes or just hard to do at home (QFN, BGA, WLCSP, …)

Pages