Emisar D18 introduction

Can a cr123 shorty tube be made? I want it!

Recieved my D18vn today, I can barely get it to work I have to screw the head on so tight! I’m using button top HG2’s. Iv’e also tried button top 30q’s with the same problem.

Also looks like it has a spring bypass… don’t know if that is factory? if its not so you think its keeping the springs from compressing enough?

Have you talked to vinh? He normally does that to support the higher power demands that a spring simply cannot do. He’s done this to a few of my vn lights.

I was able to spend a couple minutes and check things out. Looks like too much solder on springs and they cannot compress. Bummer. Emailing him now. Hopefully we figure something out.

I stopped doing spring bypasses on my lights after I got my shipment of low-resistance Be-Cu springs.

I just realize one of the batteries was a Sofirn 2200mah and not the VTC5D. I remeasured using 3x VTC5D and got 12,400 lumens at 1s. Better but still less than what I expected.

That’s pretty good. You are getting number close to ANSI.

Lumens at 1s are Ahh! and all, but are not really relevant and no one uses that measurement. I think we’d all like to see something more realistic once the output settles a bit. Maybe 15 to 30 seconds or maybe Turn on and 20 seconds so we see how it drops.

Firelight, even the Blue springs benefit from spring bypass. I chopped a D Maglite and used the Q8 reflector with it’s board and XP-L HI emitters, counting on just the springs the output seemed low, a single tail spring bypass gained 500 lumens, I removed the one on the driver and used a solid copper contact. Now the light can make the expected 5000+ lumens on a hot cell.

The collection was joined by Emisar D18.
I will say briefly, I like it very much.
Turbo withstands 30 seconds. When setting the temperature threshold to max, after 6 minutes I was able to warm it up to the temperature of 75 degrees Celsius. Beam profile similar to M43, looks reminiscent of a bejspol stick :slight_smile:

Yes, customs optics/LED mixing is welcome, just email your request to contact@intl-outdoor.com

Amazing that you got so much lumens out of the 95 cri sst20. Its just a little bit less than my xpl hi version.

Maybe do him cleaning the contacts. I undressed the whole thing, cleaned the contacts, the tube, the brass ring, everything I could. Then I re-greased the threads, twisted and just started to play. The result did not surprise me because I was counting on those 10000. It surprises me a bit, how poorly XP-L HI is. Sky Lumen did not squeeze out too much. Maybe it’s a matter of optics and poor fitting to XP-L HI?

I will be looking at my friends D18 later today, expect to find gains but where and how much remains to be seen. It’s on the mail truck , looking forward to it.

He’s so excited to see what I do to it he didn’t even measure it on his new light box! lol So I have to get readings with a few different cells first, then I can start looking for the improvements…

I did clean the contacts with alcohol but saw no gains. Sad but at least the xpl hi 5d tint is beautiful as usual

I wonder how it would be a direct comparison of D18 with SST-20 4000K vs XP-L HI 5D

I have the impression Hank should’ve went with a dual spring design on this one.

Dual BeCu springs would be nice as we wouldn’t need spring bypasses anymore at that point.

Having only 3 cells power it is limiting it.

So we need to do these things to get as much power out of it:

  1. Figure a way to bypass the springs/add a small inner BeCu spring for even higher output.
  2. Use higher efficiency optics if possible.
  3. Clean everything well.
  4. Use very high drain cells like the 20S/24S/VTC5A.

Dang it Komeko, you make that black one look SO appealing! I might just have to go ahead and pull the trigger on one of my own!

Wonder if I could squeeze 2A’s in there? 3V XHP-50.2 2a’s… :smiley:

My XP-L HI 5D measures 12,400 lumens while yours measure 10,528 lumens on your SST-20.

Does yours come with spring bypass? Mine doesn’t but I was reading some have spring bypass from the factory.

3V XHP50.2s seem a bit risky here.

You’d be going from:
18 LEDs —- equivalent 72x LEDs.