GODOX – QT600IIM – Fast Duration & HSS Strobe Announced



Godox have announced the QT600IIM and QT400IIM short flash duration and HSS enabled AC powered IGBT studio lights.

The QT600IIM are a significant upgrade from the original QT600 strobes, adding built in 2.4GHz Godox X system radio receivers, as well as HSS to 1/8000s, faster flash durations, and even faster recycle times of just 0.9 seconds at full power.

Also adding separate Stable Color, and Speed Priority Modes, the QT600IIM’s motion freezing flash durations now go down to an impressive 1/28000s at minimum power (compared to just 1/5400s for the original QT600 strobes).




With Godox X system 2.4GHz radio receivers built inside, the QT600IIM provide HSS to 1/8000s via the Godox X1 and XT32 transmitters, available in Canon, Nikon, and Sony versions.

And Remote Manual power control (in 0.3 stop graduations) is available with the transmitter mounted on most any camera providing a standard hotshoe or PC sync port.




The Godox X radio system is also capable of controlling a large ecosystem of popular Godox speedlites, bare bulb flash units, and studio lights.

All conveniently from the same transmitter, or master speedlite unit, mounted on the camera hotshoe.





  • 600Ws – GN 76M (ISO 100, Standard Reflector)
  • AC Powerd, 110V and 200-240V Versions
  • 150W Modelling Light (5% – 100% Adjustment)
  • Bowens S-Type Mount
  • Flash Modes – Manual / Multi
  • HSS to 1/8000th (with Canon / Nikon / Sony)
  • Second Curtain Sync
  • Manual Flash – 1/128 – 1/1 (1/10th Increments)
  • Speed, Stable Color, and HSS Modes
  • Flash Duration (T.1) – 1/316s – 1/28948s (in Speed Mode)
  • Color Temperature – 5600K +/- 200K (in Stable Color Mode)
  • Recycle Times  – 0.05 – 0.9s
  • Godox 2.4GHz X System Radio Receiver Built-in
  • Canon / Nikon / Sony / and Single Firing Pin Compatible
  • Range – 100m + with X1 as Transmitter
  • 16 Groups – A / B / C / D / E / F, and 0 – 9
  • 32 Channels
  • Supports Godox X1, XT-32, and XT-16 Transmitter Units
  • Supports Legacy Godox FT-16 Remote Manual Trigger System
  • S1 & S2 Optic Slave Mode
  • LCD Display
  • Flash Delay / Mask Function
  • C.Fn Custom Functions
  • Auto Memory Function
  • USB Communication Port (For FTR-16 & XTR-16 Receivers)
  • 3.5mm Sync Port




The QT600IIM’s large clear LCD display also conveniently displays the corresponding flash duration alongside (below) the power levels.




The QT600IIM provide a Bowens S-Type accessory mount, and being an AC powered strobe also provide a 150W modelling light, with adjustment from 5% to 100%.














The Godox QT600IIM are available now from $599 –

Ebay, Amazon, UK

Flashpoint Rapid 600 – Adorama


Godox – Website


  1. Strobius 5 years ago

    I got 4 pcs QT600IIM flashes this week for test.
    I can say that this flashes the best I ever worked in this power.
    Each declared function works fine.
    I’m pleasantly surprised this flash.

    And retail price will be about $550 as far as I can see according to the wholesale price.

    • Author
      Flash Havoc 5 years ago

      Hi Strobius,

      Great thanks for that.

      I think the price will be around the US$600.

    • Max 5 years ago

      Hi Strobius,

      Would you mind confirming whether the power is adjusted in 1/3rd or 1/10th increments? I know the documentation says 1/3rd but in their instruction video on YouTube I can clearly see adjustments being made in 1/10th stops.

      I know this sounds trivial but it’s an important feature for me and Godox aren’t replying to my emails.

      Thanks 🙂

      • Strobius 5 years ago

        Hi Max!

        Yes I confirm that there is 1/10th power increments in QT600IIM.

        • Max 5 years ago

          Thanks so much for confirming that! Been waiting a long time to get that confirmed

          • Author
            Flash Havoc 5 years ago

            Sorry about that Max, I’ve changed the post to 1/1oth increments.

            I have the QT600IIM strobe here now as well, and what it is though is that the strobe has the ability to work with any power scale set on the transmitter (the XT32 transmitter basically has 4 different power scale options).

            So if you wanted to use the QT600IIM alongside the AD600B for example, you would need to set the transmitter power scale to 1/3rd stops. The QT600IIM then adjusts in 1/3rd stops via the transmitter as well.

            • Max 5 years ago

              Thanks for clearing that up. It doesn’t even state this on the Godox site!

              Important info, I would have thought

  2. Ryan 5 years ago

    Is there not a battery pack for this? Only for in studio?

  3. Juan 5 years ago

    I am not sure what Auto Memory Function is. What does this mean?

    • Author
      Flash Havoc 5 years ago

      I’m not actually too sure what they have done there. The specs say “Settings will be stored for 2 seconds after last operation and recover after a restart”.

      I assume they mean the setting will be stored 2 seconds after the last operation. And will remain in memory then even after the strobe is turned off and back on.

  4. jos 5 years ago

    So what is the difference now between this and the Phottix indra500’s on AC?
    Phottix are 300$ more a piece and the flashduration is not as fast?
    So these are a winner if you don’t need the batterypacks?

  5. lloyd709 5 years ago

    Anybody know the different flash durations at different power settings? I’m specifically interested in the power they give with a flash duration of around 7000th of a second (for splash work).


    • lloyd709 5 years ago

      Found a video showing the operation of these and at one point it shows a 1/8th (+.2) power setting in speed mode with a flash duration of 7016!! if this truly is t.01 then if I’m not mistaken this makes them about twice as powerful as the Paul buff Einsteins given the same flash duration – making the truly remarkable.

      • Dan 5 years ago

        Can you post the link to the video?

      • lloyd709 5 years ago

        Thanks for that – very interesting and seems to confirm that at long last there is an alternative to the Paul Buff Einstein for high speed work (at a reasonable price and that will be available in Europe) – fingers crossed!

  6. Chris 5 years ago

    Any idea if they will be bring this out in the 800w and 1200w models like on the Mark 1’s?

  7. lloyd709 5 years ago

    Looks like they are now on sale at amazon! Anyone trying them out yet?

    • Phaneendra Gud 5 years ago

      I ordered one from Amazon. They sent 220v version. It was not flashing in ‘Action’ mode and also not going up beyond 1/32nd power. Sent it back.

      Godox said they are testing 110v version of the light and it might come in next two months (probably end of July/Early August)

      • Zeric 5 years ago

        Thanks for the update on the 110v version, I’ve been looking for it for as it was originally expected in June. I’m surprised they didn’t use a multi-voltage power supply from the start, it seems easier than having to design/manage/stock two different versions. I see lots of power supplies that work from 90-240v without any user intervention, other than selecting the correct cord to fit the outlet.

  8. Can anyone confirm the Flash duration at full power? Is it the same or less than the original QT-600? I am looking for a flash with really short duration at the 600 w/s range. There is precious little real data out there regarding this matter.

  9. Rick 5 years ago

    Are there any new tests out yet? Looking for short flashduration flashes for my studio work and it looks like this are perfect units for my budget! There is not much info out there on the web…

  10. martin 5 years ago

    When looking at the Godox product catalogue (available in the Downloads sections of their website), i noticed that it states there is a TTL version of the QT600ii studio strobe. Do you know if this is likely to become available in the UK (or anywhere else for that matter as i couldnt see it available anywhere on the web).
    The only variant that seems to be currently available is the QT600IIM (ie the manual version).


  11. robert 5 years ago

    Will the QT600II fit in a Fotodiox EZ-Pro Octagon Softbox? I don’t know the lenght of the bulb. Thanks

  12. sami 5 years ago

    Hello every one,
    I am new to strobe lights photography, planning to buy QT600II need suggestions are they worth buying and they can freeze any action using high shutter speed.

    • Author
      Flash Havoc 5 years ago

      Hi sami,

      You might be best to do some reading on freezing action. If its in a studio environment you don’t need a high shutter speed, because you can have the flash only lighting the image, therefore its the short flash duration which freezes the image.

      If you want to freeze action outside with ambient light in the image as well as flash, then you do need high shutter speed to help freeze the image. That’s where HSS comes in to play.

      The QT600II are great value flashes for both situations, though (if you’re in the USA) the PCB Einsteins have a proportional and more powerful modeling light for studio work. And the QT600II are AC powered lights so you need a fairly large battery power pack to power them outside on location (where HSS is often used). So if its location HSS you’re after the AD600 / XPLOR may be more suitable.

      Otherwise, yes the QT600II are great studio flashes.

  13. Sylvain 5 years ago

    Given their TTL ability, is it possible to use two QT400ii (for example) in TTL mode and set the f-stop difference between key and fill?

    For example : set key to TTL and set the fill to TTL -1 to get a one stop difference?

    I did try and it is not working. Maybe only one flash can be set to TTL at the same time?

    Any thoughts/advice?

    (studio setup with X1T-N trigger)

    • Author
      Flash Havoc 5 years ago

      Hi Sylvain,

      Unless I’m missing something there are no TTL version of this strobe available yet. They are Remote Manual with HSS only.

      Are you sure you have TTL strobes there?

      • Sylvain 5 years ago

        Well, not sure anymore. I thought I had read that the ii series was TTL enabled when used with with the X1T trigger. I must’ve misunderstood. That explains why it did not work…
        Thanks for the follow up.

  14. Guly 4 years ago

    Hi, I’ve just bought this strobe and couldn’t make it work HSS with my camera Fujifilm X Pro2 and X1tF trigger. It will only accept up to 1/250 ss, frustrating. Any recorded compatibility issues between X Pro2? Thanks.

    • John Wilson 4 years ago

      Have you checked that the firmware on your X1T-F is the latest version (V03)?

      There were issues with using HSS with the TT600 which were fixed by this version of the firmware. It’s possible it also fixed a problem with the QT600 II

    • Author
      Flash Havoc 4 years ago

      Yes as John mentioned, make sure the transmitter and flash firmware are up to date, and also you may need to update your camera firmware to the latest version as well.

      Most of the Fuji discussion has been in the X1T-F and TT350F threads.

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