Emisar D3AA is available now

Commercial Sellers' Spot
5079

Yes, both the switch retaining ring and bezel are removable.
The 519A LEDs are stuck on the way for about one month without moving,
Iā€™m not quite sure when they can reach to us.

5080

That sucks about the 519. It does make my decision easy though. I read to the kids every night. This will be awesome. Do you think the e21 or Nichia 219B is more.floody? I think I prefer Nichia to Samsung 351 (green tint).

Edit: same question, does the 18350 D4v2 tube work?

5081

oh dear, I am still waiting for this 519a arrive to you so that we can click the buy button :frowning:

5082

Couldn't help it, ordered a DW4 with a boost driver and SST20 4k.

Does anyone know if the weight spec is with a cell? 128g would be very heavy without a battery compared to similar lights.

A little comparison table courtesy of "sissipaska":https://www.reddit.com/user/sissipaska on reddit.

A single 18650 cell weighs around 45 grams.

Quick comparison:


Skilhunt H04: 44g, 89g with 18650*

Emisar D4V2 74g, 119g with 18650**

Emisar DW4 83g, 128g with 18650

Emisar DT8 104g, 149g with 18650*

In detail:


Skilhunt H04 18650 tube with tailcap weighs 20g, head 24g, combined 44g

Emisar DT8 18650 tube with tailcap weighs 36g, head 65g, combined 104g

The DT8 shares battery tube with the D4V2 and DW4, so:


Emisar D4V2 18650 tube with tailcap weighs 36g, head 38g, combined 74g

Thus for the DW4 if we deduct 45g 18650 cell from 128g, we get:



Emisar DW4 18650 tube with tailcap weighs 36g, head 47g, combined 83g


    

  • without tailcap magnet
    • 



**according to /u/grzybek337

, don't have one to weigh

5083

That Reddit username gave me chuckles. Definitely Finnish. :smiley:

5084

Sorry for the wrong information, DW4 is actually 84g without battery.

5085

Not enough space, dual buck would be possible.

5086

How ? Isn't a buck or boost circuit the same number of components ? (not that I would mind regardless)

Or maybe is it that the buck would take smaller inductors (components overall) or something.. ?

5087

[quote=nick779]

A single 18650 cell weighs around 45 grams.

Quick comparison:


Skilhunt H04: 44g, 89g with 18650*

Emisar D4V2 74g, 119g with 18650**

Emisar DW4 83g, 128g with 18650

Emisar DT8 104g, 149g with 18650*

In detail:


Skilhunt H04 18650 tube with tailcap weighs 20g, head 24g, combined 44g

Emisar DT8 18650 tube with tailcap weighs 36g, head 65g, combined 104g

The DT8 shares battery tube with the D4V2 and DW4, so:


Emisar D4V2 18650 tube with tailcap weighs 36g, head 38g, combined 74g

Thus for the DW4 if we deduct 45g 18650 cell from 128g, we get:



Emisar DW4 18650 tube with tailcap weighs 36g, head 47g, combined 83g


    

  • without tailcap magnet
    • 



**according to /u/grzybek337

, don't have one to weigh

Was looking for something to physically compare weight with (and size visually), specifically in the short version. So here are some additions:

  • SP40 no battery: 58 / 67 gram (18350 / 18650)
  • SP40 tube only: 10 / 18 gram (18350 / 18650)
  • D4v2 tube only: 15 / 28 gram (18350 / 18650)

Or even more extreme, but slightly unfair comparison; the Sofirn HS10 (a 16340 light) only weight 35 grams. DW4 18650 weighs 84 gram, so that means DW4 18350 weighs 71 gram. Double the HS05.

TL;DR

The DW4 is one of the heavier options for headlight purposes. It is worth noting that Emisar's build quality is more solid than a lot of common alternatives. Also I looked purely at weight, the DW4 driver and emitter options blast the above mentioned models out of the water.

Edit @thefreeman

Sorry about that. Mixing rich text with plain text got messed up

5088

A combination of things

  • need a high frequency converter IC to reduce the size of the inductor and capacitors so that it fits into the D4v2 board, very common with buck converters, less so with boost converters, TI has the TPS61088 and TPS61278 with adjustable frequency (also TPS61089 but less powerful).
  • fewer passives needed, usually none at all (except FB voltage divider), whereas TPS61088 and TPS61178 need 8 and 7 passives (external compensation, ilim, freq selection, bootstrap cap, Vcc decoupling cap)
  • usually smaller than boost ICs

@ Verodin, your quote breaks the page on mobile (due to the ā€preformatedā€ format without line breaks)

5089

Does anyone know the last Anduril 2 repository version where the k9.3 build worked?

5090

Would the new D4V2 switching driver fit into the DW4 at all?

5091

Not sure if you mean switching as in Buck, or switching as in channel switching, but both of those are available in DW4. The boost driver is available as an add-on on the single channel product page. The channel switching version has a separate listing.

5092

My bad, I meant switch-mode, DC to DC converting driver. Missed the add-on option too. Thatā€™s terrific news, now I donā€™t have to wait on Fireflies to release their Lume1 PL47 successor. Iā€™ll go for Noctigon/ Emisar build quality any time.

5093

Iā€™m almost certain the 519aā€™s will be available tomorrow. Iā€™ve been waiting weeks to order another Hank light and pulled the trigger today, that pretty much guarantees the new LEDs will go on sale tomorrow or very soon thereafter.

5094

I feel you. Solid logic

5095

Same. I ordered yesterday so obviously 519 will come soon. After.

5096

Patience is a virtue!

5097

Iā€™ve always been told Iā€™m better at vice than virtue.

5098

First light Iā€™ve ordered in a long time- Cyan anodised DW4 with boost driver, 4000k XP-L HI and amber switch.