TK's Emisar D4 review


Interesting.

Just found out from reading on CPF about a hidden feature in the UI:

After you double-click while the light is on to jump to max turbo, you can double-click again to return to the previous brightness setting.

The long side worked with the paper clip, but not with the cap, if you look at the picture one side of the tube is thinner.

Well, that is strange, butt we know the short end is the problem.
I’m sure Mtn will make it right. Give them a call.

Sub’ing because how did I ever miss this thread. Will have to order one here shortly…

Just to clarify, what are the differences in the D4 and the D4vn models? Somewhere in the last 70 pages I am sure I missed some important information.

The stock D4 is available with XP-G2 (dome on), 219C, or XP-L HI emitters. Vinh’s mod uses dedomed XP-G2 emitters for increased throw.

Thank you for the quick answers :slight_smile:

I figured that Vinh had done something before putting his name on it. :slight_smile:

Is that a hidden feature? It’s in the UI diagram, and Hank found it important enough to add some text about it to his version of the diagram. Here’s the image shown at Intl-Outdoor’s product page for the D4:

I measured my D4vn just yesterday, if that helps.

Ran a thermal runtime test on the D1 with a 30Q. It held turbo for about 1:24 sec. Gradually stepped down all the way to about the 10 minute mark. At that point I think it was about as bright as the regulated to FET jump point. Then held it until around the 12 minute mark when it started to ramp up again. Love it! After 15 minutes it was warm to the touch and the 30Q was at 4.10V.

Also, not in the video but I compared it to one of my worklights, a Streamlight Stinger LED HP 350lm 56kcd, and the D1 seems to throw a little farther with a significantly wider hotspot.

Yes, it is real nice for evening /night uses(reason I say that, if used in the day in poor artificial light, it can do all kinds of things to 4000k beams. 5000k works better for me in these conditions). I have an EDC plus triple, that is also xp-g2 4000k and why I new I would love the D4 4000k. Also Malkoff uses the 4000k xpg2 for his N (neutral).

Can someone tell me if turbo mode can be memorized? So I can turn on with a single click.

Yes it can.

TK, could you please add amps measured with each emitter to the first post? They are buried somewhere within the thread and not really findable now…

Yes, looks like a defect in the tube, hopefully you can get a replacement.

MoPower

All of my tubes look like that and all of them work

Nope. I don’t have a way to measure that many amps, and the value can change a lot depending on the cell type and condition.

Cool. It’s nice to see that it can run so long before the first step-down, and that it’s fairly gradual. I was really hoping the decreased power and increased thermal mass would make that happen, but I haven’t been able to actually test it yet because I don’t have a D1 yet.

I think the code I have now should behave better than the D4v2 firmware. At least, it makes the adjustments smooth instead of sudden, it should be less prone to noise in the regulation pattern, and it should step back up faster if it ever needs to.

How different is the D1 to Kronos x5 in terms of throw and spill?

I can’t compare the D1 to the X5 yet, but I’m curious too. :slight_smile:

Going by the lux numbers people have posted, it should be throwier than the X5, almost as throwy as the X6v2.

So, it’s probably pretty nice as a compact thrower. I was hoping it would be more of an EDC-style beam, but it seems it’ll be pretty throwy.