TK's Emisar D4V2 review

I never heard of any Emisar problems when it’s using ramping firmware , maybe it’s just a coincidence that problems are popping up now they are running on anduril :question:

I don’t think that’s the case.

I have stock D4s with ramping IOS and modded D4s with Anduril. All of them work perfectly. I don’t think the problem is the firmware.

That said, I don’t yet have the latest version of Anduril for the D4 installed, so not sure if there is a problem with it and the D4. If the light failed to ramp down at all and stayed on turbo, I suppose that might also explain what Pint experienced.

Well, I'm planning to do runtime graphs when mine arrives. Until this is all sorted out and understood, I'll make sure there's a baking pan under the light.

If I were the manufacturer, I would be pulling some samples from stock - to perform some runtime tests, both on and off. There aren't that many of these lights out there, it's a bit concerning.

The firmware is not to bad , it’s the thermal regulation of the firmware that I’ve got no confidence with.

Huh, I really should have got the joke, as this guy was born just a few minutes away from where I live.

Mine is on the way with SST-20s. I don’t really fiddle with the settings on my D1, D1S or D4, but what’s the first thing I should do to prevent Chernobyl?

Re-calibrate the the thermal setting? I don’t think I’ll play with Turbo too much and I’ll keep the light unlocked at all times unless I’m playing with it right in front of me.

This is kind of a bummer, but there are bound to be a few Ferrari 458 Italia engine fires along the way!

Chris

If I were the manufacturer, I would be pulling some samples from stock - to perform some runtime tests, both on and off. There aren’t that many of these lights out there, it’s a bit concerning.

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hoping Hank will stop by, a bit concerning indeed!

Anduril is generally more aggressive with stepdowns than RampingOS AFAIK. Unless the settings are really goofed (like some Fireflies lights and FW3As were from the factory, but very easy to fix) something like this shouldn’t happen. I mean, if an FW3A modded to quad emitters can manage the heat without desoldering itself a light with the mass of the D4 shouldn’t either.

I dont want to have to go through the hassle of mailing the whole thing back, waiting, and waiting then maybe getting it fixed/replaced :frowning:

They usually wont ask you to send it back as long as you have it all documented.

I must say it’s a bit curious that one day you post about having trouble setting upper thermal limit and next day you managed to have a melt down. What exactly did you do at that point?

I don’t think that should matter.

My recollection is that it’s not possible to turn off the thermal protection in Anduril. You can set so it is less aggressive but it should still turn on and protect the electronics.

I much prefer the ramping ui ,& version 2 is a bit better ,I think anduril is a step backwards ,yeh you get the blinkies & all that but the main features of a good super bright light is spoilt by not allowing it to stay bright for long enough , my D4 will stay at its brightest & wont step down until it’s reach it’s specified temperature 70* in my case , but anduril will step down earlier than it’s suppose to , yes tk has modified it a bit but im Not about to spend more money on the same torch with an updated thermal control that probly isn’t much better , but I’m sure most people are happy with it.
I’d like to buy a new D4 but not if it has anduril FW.

If you don’t think that matters then you have never had to troubleshoot software. In a perfect world you are right.

If you wanted to overheat a light on purpose you could put the light in a freezer then run the thermal calibration and tell it it’s 30c to make the thermal regulation do nothing until it’s too late

After asking about it, I decided to leave it as it was, on default as I was still trying to get used to the UI, sometimes it didnt appear to respond to the button clicks.
I thought it could have been something I was doing wrong, aux leds would cut out, it wouldn’t turn on etc, as if it was stuck in lock out mode.

Then today is when I came back from work, and noticed the button off+ the loose wire.

In 3 weeks time I will be going away, was hoping to be able to make the most of this light.

What’s the return/repair process like (purchased from intl outdoor)

Hank is a good man. Contact him with photos of your light, etc. I would bet he will just send you a new head,even before he asks you to return the damaged one. After all, your light was brand new.

Actually it’s the opposite which is easier to do by mistake. Run turbo for a bit then the light thinks 55c is actually 23c now your light is off by over 30c. Set the ceiling to 70c cause “I like to set things on fire” and now you have a problem.

You can set the thermal management to be much more lenient if you want. For the majority of people avoiding harm to themself or damage to the light is the right choice for a mass-market product.

Remember that Lumintop is selling this to plenty of people that have never had a FET triple before.

How long does the free shipping to EU usually take?

Its been a while now

Don't know about the EU, but to Oregon, in the US . . .

Ordered June 20th

shipped June 29th

Currently at LAX (Los Angeles, California).