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 around $599 –

Adorama, Ebay, Amazon, UK


Godox – Website




  1. Strobius 9 months 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 9 months ago

      Hi Strobius,

      Great thanks for that.

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

    • Max 9 months 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 9 months ago

        Hi Max!

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

        • Max 9 months ago

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

          • Author
            Flash Havoc 9 months 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 9 months ago

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

              Important info, I would have thought

  2. Ryan 9 months ago

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

  3. Juan 9 months ago

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

    • Author
      Flash Havoc 9 months 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 9 months 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 9 months 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 9 months 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 8 months ago

        Can you post the link to the video?

      • lloyd709 9 months 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 8 months ago

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

  7. lloyd709 8 months ago

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

    • Phaneendra Gud 7 months 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 6 months 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 2 months 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 1 week 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).


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