Godox QT-600 – Fast Duration Monolight

The new Jinbei EN-350 portable Lithium power pack recently discussed, offers a similarly priced alternative to the popular VML power pack, but the other half of Paul C Buff’s popular combination is the Einstein monolight. There haven’t been many alternatives available to match the Einstein’s features and low price, but the recent Godox QT-600 may actually offer a reasonably comparable alternative.

Godox QT-600

There are so many studio monolights on the market now, and more constantly being released all the time. But models with any real stand out features are still pretty few and far between. Up until now I haven’t seen any that come close to the Einstein’s ability at anywhere near the price.

Like the (640Ws) Einstein, the (600Ws) Godox QT-600 offers –

  • Very fast flash duration’s for freezing motion
  • Very good color consistency across the power range
  • Fast recycle times of 1.2 seconds at full power
  • Accurate power consistency
  • A wide power range down to low power levels
  • And fast and easy remote manual power control


The Einstein and QT-600 both achieve these features by using IGBT circuitry in the flash design. So they are basically like very scaled up speedlights. But retaining these features is not easy when scaling up to much higher power levels like these 600Ws units provide. That’s where the Einstein has been a breakthrough, at least at the very low price point for a flash with this capability.

In the US its very hard compete with Paul C Buffs low price model of selling direct to the public (with exceptional customer service). But particularly for those outside the US the Godox QT-600 may now at least offers something in the way of comparable alternative.

Godox QT-600

How does the QT-600 compare to the Einstein?

The Einstein really has an advantage from the start because it provides 2 operating modes, one optimized for color consistency, and the other optimized for fast flash duration. The QT-600 is operating in just the one mode, so it has to make a compromise between the two, and the fast flash duration is where Godox have made some compromises.

There is a good review here by Phil Harbord, an electrical engineer in the UK, who has the equipment needed to measure the flash durations etc. Note – the SF-600 shown there is the same unit as the Godox QT-600, but sold by Lencarta in the UK as the SF-600 (or Super Fast 600).

Power Range

The Einstein has an exceptional 9 stop power range. That’s power down to 1/256, or just 2.5Ws, and in fine 1/10th stop adjustments. That range is a really important advantage with a 640Ws monolight, as it means you don’t have to double up, buying lower power units as well for when 640Ws is just too much light.

The QT-600 does also have a very reasonable 8 stop power range though too (down to 1/128th). Again (mostly) in 1/10th stop increments. But the QT-600 only has 50 increments in total. The power adjustment goes from 5.0 (lowest power) to 10.0 (full power). So the first 4 stops from 10.0 down to 6.0 are in 1/10th stop increments as expected. But then from 6.0 down through to 5.0 the power drops right down the last 3 stops. So this is a slight compromise compared to the Einstein, but the important thing is the lower power levels are still possible.

Flash Duration

Einstein T.1 flash duration’s [see chart]

  • Action Mode – 1/588 (full power) – down to 1/13514 (minimum power).
  • Color Mode – 1/588 (full power) – down to 1/8000 (minimum power).

QT-600 T.1 flash duration’s [see chart]

  • From – 1/500 (full power) – down to 1/5400 (minimum power).

So taking into account the QT-600 goes down one less stop in power level compared to the Einstein, the QT-600’s T.1 times are very similar to the Einstein in Color Mode, actually a little better at levels below full power. In action mode the Einstein has the advantage (at the cost of some color change).

Lencarta show some test reviews showing practical results to be close to 1/10,000th shutter speeds. I don’t know how much you can really take from that, but duration’s from 1/2400 at 1/4 power, down to 1/54000 (although not ultra fast) should still be fine for most action freezing purposes.

Color consistency

The Einstein in Color mode has an excellent +/- 50°K color consistency across the complete power range.
The QT-600 reports to be not far behind, at most still within +/- 100°K, which is excellent for a flash like this.

Power Consistency

Both flashes report excellent results with power level consistency between shots.

Recycle Time

The QT-600 has the advantage here with an exceptional 1.2 seconds at full power.
Compared to a very respectable 1.7 seconds for the Einstein.

Weight and Size

The Einstein has the weight and size advantage, being a very compact and lightweight 2kg.
Compared to 3.1kg, and longer length for the QT-600.

Godox QT-600

Mount –

The QT-600 uses the very common Bowen’s style mount, where the Einstein uses the Balcar style mount (which have had some issues with heavier modifiers slipping off). The QT-600 also has a solid alloy body and swivel compared to the Einstein’s plastic.

Godox QT-600

Interface and Remote Control

The Einstein has a very detailed interface, and Cyber Commander remote control, even showing details like color temperature and modelling light power levels.

The QT-600 is much more simplistic, and I wouldn’t necessarily call that a disadvantage. This probably comes down to personal preference, but the Godox interface and remotes are very simple and user friendly. There is just fast simple power dials for the modelling light and flash power. With a clear digital power level display reading from 5.0 to 10.0.

Godox QT-600


The Godox radio triggers (and remote manual power control) used with the QT-600 are the same units used in the Godox Witstro portable bare bulb lights. These may not be the most advanced radio triggers, but they are very reliable, and again the user interface is very fast and user friendly. Compared to most speedlight remote power controls at least, they are much more simple and practical to adjust power levels quickly.

A large part of my own interest in the QT-600, being a user of the Godox Witstro, is the prospect of using the same convenient radio trigger and remote manual power control for all the units. There is one catch here though, as the QT-600 uses the 5.0 to 10.0 power level system, while the Witstro lights use 1/2 + 0.3 style power adjustments (from 1/128 to 1/1).

So 2 transmitter units are needed to practically adjust both lights.


To sum up, the Godox QT-600 may not be quite a match for the ultra fast flash durations the Einsteins are capable of, but they do look to offer a reasonable alternative if you are after decent action stopping durations.

But even as a regular studio light option the QT-600 certainly stands out from many of the other options, providing –

  • High power at 600Ws
  • Excellent color consistency
  • Very fast recycle times
  • Accurate power consistency
  • A wide power range down to low power levels
  • Convenient remote manual power control


So even if fast flash duration’s are not a priority, the color and power consistency, power range, fast recycle times, and simple remote power control, are most of the very desirable features you would hope for in a good studio light.

300Ws and 400Ws versions are available as well, but the 600Ws would be the stand out (as flash durations are faster at the same amount of light ouput).

There are 200-240V, and 100-120V compatible versions, but the 200-240V version is likely to be most readily available (as the 100-120V version will still have a tough competition with the PCB Einstein in the US).


QT-600 Specifications –

Model QT-400 QT-600
Max Power 400WS 600WS
Guide Number (m ISO 100) . . 65 76
Color Temperature 5600 ±100K
Operating Voltage AC200-240V/50Hz or AC100-120V/60Hz
Power Output Control 50 steps from 5.0-10.0 (1/128-1/1)
Modeling Lamp 150W
Recycle Time 0.05-1.2s
Triggering Mode Sync cord, Slave triggering, Test button,Wireless control port
FlashDuration 1/5000s-1/800s
Fuse 8A


Price and Availability –

The QT-600 are currently available from as low as $390 on Ebay, direct from HK with shipping included.

The Instruction Manual can be seen HERE.

Godox QT-600.

Godox – Website


  1. ituner 8 years ago

    My personal opinion
    This flash is worthy, but it is not an alternative to EINSTEIN 🙂
    Especially in the studio.

    • Author
      Flash Havoc 8 years ago

      Thanks Alexander,

      But what do you think it lacks, that you would prefer?

      Mainly just the faster durations? Thanks.

      • ituner 8 years ago

        I have EINSTEIN and Cyber ​​Commander 🙂
        This is a much more advanced system in all points.

        In my view, for for outdoor work more interesting RIMELITE i4
        Bayonet BOWENS,
        Divider 1/1-1/64, (Real)
        Flash duration is close to E640,
        Two modes Standart and Dynamic Mode (similar to Color and Action)
        Strobe mode
        Available the optional remote control SWINGII
        But most importantly, they have a built-in battery that can be quickly replaced
        Do not need an external converter.
        The overall quality of higher than GODOX

        But personally I do not like monolite
        I prefer the Power Pack with a small light head as ELINCHROM Quadra RX
        And I’m still search, as the Quadra RX is too expensive for me 🙂

  2. Rob 8 years ago

    As reported elsewhere you can set the transmitter to display power settings like studio strobes (5.0 to 10.0) so tou can work seamlessly with CL360 and QT600

    From the manual:

    The trigger set has two modes to display a flash’s power ratio.
    1. 1/128~1/1: widely adopted in most shoe mount flashes.
    2. 5.0~10: widely adopted in most studio flashes.
    The two display modes can be switched over by pressing the Set Button and holding for 2s.

    • Author
      Flash Havoc 8 years ago

      Hi Rob,

      Thanks, yes but unfortunately you can only use one power mode method on the transmitter at a time. So even if you switched modes to adjust the other set of flashes, you will then loose all your settings for the first set of lights every time! (as the transmitter resets every time you change modes).

      So using a second transmitter (in hand) just as a remote to adjust the power level of the Cheetah Lights only, and the first transmitter mounted on the camera to adjust the QT-600, and to fire all the flashes, appears like it should work ok. (I did a bit of a dry test run, as I don’t have the QT-600, only the cheetah Lights and a couple of transmitters). But that does appear very much like it will work that way at least.

      So I would say reasonably seamless, as long as you don’t mind having and suing a second remote.

      I will explain this to Godox because they may be able to stop the transmitter from resetting, but it would still be a hassle holding the set to change power modes all the time. Thanks.

  3. Julius 8 years ago

    Hi there,

    You wouldn’t happen to know if this flash is compatible with the original Innovatronix Explorer XT would you?

    I know the Einstein’s are, but the price of the Einstein’s in Australia are quite a bit more than its US counterpart ($USD640 converted compared to $USD499)

    I also already have a few Bowens accessories and making the jump to the Einstein will mean re-buying all my current modifiers.

    If I know it’ll work on my XT, I’ll probably go for this instead of an Einstein.

    Do you also know where you can get replacement flash tubes for this unit?

    Thanks in advance


    • Author
      Flash Havoc 8 years ago

      Hi Julius,

      I would be surprised if it wasn’t compatible as the Explorer can handle a lot more flash units than the VML ect. But your best bet would be to contact Innovatronix to try and confirm with them. I don’t think Godox would be much help there as they would likely only know their own packs (which are much larger). Thanks.

  4. Alex 8 years ago

    This Godox is a much better value proposition than the Einstein in Australia. However my demands aren’t that high.

    What I’m trying to find out is the differences between Godox’s QT, QS, GT, GS and GE series strobes. The Qx models are the largest and have the fastest recycle times. The xT models are more expensive than the xS models for no apparent reason and the GE model is smaller and cheaper than all of them, despite near identical specs to the Gx series. They all accept the FT-16 remote control manual trigger though which is nice.

    The funny thing is, the GE model doesn’t even show up on Godox’s website, but it is available on eBay through reliable sellers.

    Basically, I’m choosing between the GE and GS, but there’s no spec difference. So I’m wondering why the price difference?

    • Brad 4 years ago

      Exactly the same questions I have in 2017 – very difficult to determine the differences between models when the prices on eBay (Australia) are relatively similar
      How did you go with further research?

  5. Mohammed 7 years ago


    I am wondering the Flash Duration 1/5000s-1/800s provided is at t.5 or t.1?

    any help please.


    • Author
      Flash Havoc 7 years ago

      Hi Mohammed,

      They are basically the t.1 times. But you can see an independent test here which showed T.1 durations where around 1/5400s-1/500s. Thanks.

  6. MS Photography 7 years ago

    I think these Godox’s are gonna be key in 2014. I’ve heavily invested into the PCB system and now PCB has pulled out of Australia. This really sucks. I’m torn between these cheap QT 600’s or going Profoto D1’s.

    But thanks Flash Havoc for making this comparison. It sure was insightful.

  7. Pablo hill 7 years ago

    Where can i buy spare flash bulbs? Or what kind of bulbs should i buy?

    • Author
      Flash Havoc 7 years ago

      Hi Pablo,

      Yes you can buy spare flash bulbs from Godox. I don’t know if any other brand bulbs would be suitable or not.

      You would need to contact the seller of the Godox lights, or Godox products. Thanks.

  8. Antonio 7 years ago

    I am considering between the Einstein 640 and these QT600 Godox and I have some doubts that resolve.

    I tried a Godox QT600 unit with battery Godox Leadpower LP-750 and recycling time increases of 1.2 to 2 seconds to maximum power (which is great compared to 3 seconds in the case of Vagabond ML) but I assume that to have 2 units connected it would double the time to 4 seconds so it would be cheaper and faster recycling time buy 2 Vagabond ML (1 for each unit Godox QT600)

    Do you think affect anything if I use batteries Vagabond ML with the Godox QT600 and recycling time would be the same, 3 sec approximately maximum power?

    Can some of these units be used in HSS mode? Either with the Cells (II) in the case of the Godox QT600 or with the Pocket Wizard T1 and T5 in the case of Einstein?

    Many thanks for the response and by the time spent for the excellent reviews

    • Author
      Flash Havoc 7 years ago

      Hi Antonio,

      It’s possible the Leadpower LP-750 ports would be separate, so recycle could stay as fast when connecting a second flash. But I’m not sure about this. It is a big powerful pack though, so it is possible they don’t send all the power to one port.

      I haven’t heard any reports of the QT600 used with the VML yet, so I can’t really answer that sorry.

      These flashes with fast (or short) duration are not ideal for HSS (or long duration sync as it actually is with these lights). You definitely need to use full power all the time, as that is where the duration is longest. But even then results can be limited with full frame cameras etc.

      The PocketWizard results with the 5DIII for example are here. So even at full power you get clipping in the frame.

      If you are more interested in HSS, Godox have a new version of the XEnergizer 600WS pack and head kit coming soon (its just a much better head design).

      But because of the long flash duration these will likely loose 1/3rd of a stop at 1/250th shutter speed. So that’s likely more like 400WS in practice. But like the current XEnergizer you can generally use long duration sync at any power level.

      • Nate 7 years ago

        Are the metal flash head and LED modelling light the only differences from the current plastic and halogen one in the current Xenergizer?

        Has it been confirmed that Godox will be offering them, and not just the Lencarta with their brand as in your link? I am concerned by the “The Safari 2 is unique to Lencarta and our authorised dealers” statement on the website. Has Godox done timed exclusive deals with distributors in the past?


        • Author
          Flash Havoc 7 years ago

          Hi Nate,

          Godox will sell the new version Xenergizer as well. They appear to be getting stock to sellers re-branding them first this time though. I would suspect the Godox version would be available within the next month or so though.

          The new head is much more like a compact monolight, with a solid metal swivel and metal Bowens mount. The current / previous head is very flimsy in comparison and not ideal for mounting softoxes etc on a light stand. Its basically designed just to hand hold (with the plastic handle) and standard reflector.

          The new version should be much better for mounting modifiers etc to a light stand.

  9. nixland 7 years ago

    The recycle time at lowest power is 0.05 seconds.
    Does it mean it can provide 10 flash firing in a second if I use high fps camera like 1D IV?
    I successfuly did with my Canon 580EXIi at 1/8 power. So I wonder at what power level this strobe could still provide 10 flash fire per second.


    • Antonio 7 years ago

      Hi Nixland, I did this test and even managed to shoot more than 10 or 12 continuous shooting without any delay by the flash, first filled the buffer of the camera. The photos were on half power (7 or 8 do not remember) and with a f/8 with light box to a meter and a half away approximately.

      I was very surprised by the speed of recycling when connected to the mains

      • nixland 7 years ago

        Wow, that’s cool! .. Thanks…
        By the way did you use the 1D IV or other camera? 10 frame per seconds shot or just 10 continuous frame ?

  10. Sandy 7 years ago


    i have two question
    godox qt600 and lencarta sf600 is same product but different brand, but why on the website, the flash duration isn’t same?
    lencarta sf600 1/800th – 1/20,000th at minimum power
    godox qt600 1/800s – 1/5000s at minimum power

    and is godox qt600 good enough for freezing liquid and action like in this website http://www.lencarta.com/sf-600?

    sorry for my bad english


    • Author
      Flash Havoc 7 years ago

      Hi Sandy,

      Yes they are the same flash and the durations are the same. I would go by Godox’s figures because I personally don’t have much faith in things Lencarta say.

      You can see an independent review with flash duration’s measured here. And those are similar to Godox’s specs, if not just a little better.

      1/5000’s should freeze liquids fairly well. If you were shooting water droplets or similar which would be viewed up very close, then you would be better off using speedlights. Otherwise 1/5000 is pretty fast. Thanks.

  11. Jerri 7 years ago

    Hi thanks again for your thorough reviews

    My main goal is to shoot liquid splashes, I was hoping Id be able to attain this w/ this flash.

    I noticed the QT series also has a 400ws version. Would you recommend the lower power version for someone who has a very small studio space?

    Would I have a faster (shorter) flash duration on the qt-400 vs qt-600 on the same power level (eg 150ws) ?

  12. Mario 7 years ago

    Thanks for the awesome review!
    I really like this unit, I want to use it for outdoor applications with the PCB Vagabond Mini Lithium battery, do you think it’ll work without damaging it?
    PCB Vagabond Mini Lithium are optimized for AB or Einsteins, but I really like the QT-600’s.

    • Author
      Flash Havoc 7 years ago

      Hi Mario,

      I think you would need the 100-120V version, which may be hard to come across.

      Someone posted in the comments though that they will be retailing Godox Lights in the US soon, so I’ll see if I can follow that up. Thanks.

      • Mario 7 years ago

        Thank you for responding 🙂

        I’ll keep an eye on your updates.
        Great site! So much great information Great work!

    • perez 7 years ago

      if you need a 120 volt version (of the qt-600) i just got one from this vendor in HONG KONG it took 4 days to USA.
      this is the ebay link

  13. Peter Togel 6 years ago

    For me, having a vast variety of modifier is important. With the Einstein having their own thing going and the GODOX using the Bowen style, I’m leaning towards the GODOX.

  14. Peer 6 years ago

    The US now has a dedicated Godox importer with 2 year warranty and fast free shipping (at least for now). The website opened a few months ago as mentions on the related blog by Mike, the owner.

    I’ve been agonizing over getting Einsteins for several years now. Something has always *come up* when I came close to purchase. And most of all, I’m not fond of the size of their CyberSync.

    Last year I tested whether I liked the Godox triggers with the V850, and I do. When the AD360 had passed the initial roll-out/ break-in period without major issues I went with them. So it’s now really weird to me but… I got a couple of the Godox monolights to try out, rather than Einsteins, just because I like the triggers. I got a QS300 & QT600. Both have competitive specs as noted above for the QT. The QS, for $200 is more than adequate. I’m hoping that that if there were any hidden underlying design Oopsies in them that Godox fixed them over the last year, as they did the battery issues with the Wistro/V850s. So for the USA I’m really feeling like an early adopter!

  15. Peter 6 years ago

    Related to the above it’s actually the view of all 16 channels (even if they weren’t being used) on the CyberCommander than isn’t my favorite thing.

  16. Mario 6 years ago

    Anyone tried the QT-600 with the PCB Vagabond Mini?

  17. Mauro Rodrigues 6 years ago

    what’s the main differences between Godox DE-400 / DS-400 / QT-400 and QS-400 models ?

    • Author
      Flash Havoc 6 years ago

      Hi Mauro,

      The difference between the QT and QS is just the flash durations. If you don’t particularly need to be freezing motion then you can save some money going with the QS models.

      I think the DE or DS just replaces the other model. I’m not that familiar with them or if there are any functional differences from one to the other.

  18. Kimmy 6 years ago

    Does the QT series have automatic power discharge when you change settings ?

    I thought the Xs series all have automatic power discharge like the GS and QS series but have slower flash duration and +/- 200K color temp variation.

    Then the QT and GT series doesn’t have automatic power discharge but has faster flash duration and more stable color temperature with +/-2ooK color temp variation.

  19. Kimmy 6 years ago

    edit, i mean the QT and GT series have more stable color temperature variation at +/-100K

  20. Kimmy 6 years ago

    i’ve been reading the user manuals of all the Godox series studio flash and this is what i’ve learned

    DE series – no autodump feature, regular low cost, +/-200K temp variation
    adjustable from (1/16 to 1/1 power) in 20 steps

    QT – with autodump, high speed IGBT, +/- 100K color temp variation, 50 steps power adjustment (1/64 to 1/1)

    QS – with autodump, regular speed , +/- 200K color temp variation, 50 steps power adjustment (1/64 to 1/1)

    GT – with autodump, high speed IGBT, +/- 100K color temp variation, 30 steps power adjustment (1/32 to 1/1)

    GS – with autodump, regular speed, +/- 200K color temp variation, 30 steps power adjustment (1/32 to 1/1)

    the difference between Q and G series is just the interface and the build quality. Q series are sturdier and heavier than G (gemini series)

  21. Donald F. 6 years ago

    I just ordered one today while its on special sale! So, once I get it.. I will test and review… Just Watch! 🙂

  22. Jacob 6 years ago

    Is there an update to the FT16 transmitter that allows output values to be maintained when switching between strobes and speedlights yet?

    I currently mix DS300s and V860C, all Godox, and it’s frustrating that, even inside the brand’s own system there is such incompatibility. Using two triggers is not as convenient. I’ve just purchased a QT-600 over an Einstein so I’m really hoping for a fix to the transmitter issue. Even in the US, I went with the QT-600 as it’s about $300 on e-bay right now and I already have Bowens mount modifiers. I’ve also heard mediocre things about Cybersync, which would have added another couple hundred dollars to get into.

    • Author
      Flash Havoc 6 years ago

      Hi Jacob,

      Unfortunately I don’t think its likely Godox will improve the FT-16 transmitter functions at the moment.

      At this stage they are likely more focused on the X1 transmitter system, as they will have 2.4GHz receiver units available sooner or later to be used in place of the current FTR-16/s clip in receiver units.

      Whether Godox have taken into consideration the different power systems I don’t know, we can only hope so.

      How long of a process this transition is going to be is yet to be seen as well.

  23. Jacob 6 years ago

    Thanks for your input. Well, I suppose the inclusion of the 4-pin communication port on the TT685C (and the rumors of 2.4GHz FT-16 upgrade) are solid evidence that the system is not abandoned. I’m not dying for receivers built into the speedlights themselves so I’m glad things aren’t going exclusively that direction. I’d much prefer brand inter-compatibility (camera-wise) to TTL. HSS would be lovely, though. Perhaps the 2.4GHz update will resolve the power level reset issue. For now I guess I keep carrying my three transmitters around.

    Perhaps Godox will consider a future system where each stop in exposure is represented by its own transmitter. So now we have easy to use transmitters with simply one button and each of them are tied to a power setting on the speedlight/strobe. This way, we could carry 9+ transmitters around instead of only three 🙂

  24. Vincent phan 6 years ago

    Can I use Yongnuo 622C Trigger with this strobe light ?

  25. Adrian Creary 6 years ago

    Do you know who distributes or rebrands these for sale in the US?

    • Author
      Flash Havoc 6 years ago

      Hi Adrian,

      There is a dealer in the USA that sells them under the original Godox brand. I’ll have to try and find them now. I remember they did post their details in the forum.

      I think the PCB Einstein etc are still pretty hard to compete with in the US, so there likely not a big demand at this stage.

  26. Kimmy 5 years ago

    Regarding the QS, QT, GS, GT series.

    The QT series only features the high color accuracy +/- 100K color temperature variation.

    All series that ends in T like QT and GT are high speed strobes. All series that ends in S like QS and GS are standard speed strobes.

    QS and QT are better built with aluminum casing with 50 step power adjustment and GS/GT lightweight plastic casing power output adjustable in 30 steps

  27. David 4 years ago

    Hello. Thanks for this article. I am presently successfully triggering some godox sk400 flashes in hss up to 1/4000 (because my camera stops there) using the godox x1T transmitter and the small xtr-16 usb receivers connected on the usb port of the flash. No banding at all. I was wondering if ayone tried the x1T and xtr-16 on the QT 600. I am planning to purchase one but I would like to do this only if hss is confirmed with this setup. Thanks in advance.

    • Author
      Flash Havoc 4 years ago

      Hi David,

      The QT600 have very short flash durations, so high shutter speeds are likely only going to be possible at full power where the flash duration is longest.

      Have you thought about the QT600IIM or Flashpoint Rapid 600, as they have a real pulsing HSS mode. That should still work fine in combination with your old strobes using the long duration sync method (and X1T / XTR-16).

  28. Graham Crook 3 years ago

    I have a Godox QT600 and a Godox XT32N with a Nikon D750.
    I am trying to set it up for high speed sync.
    Could you please help me with the settings for the godox equipment. I have set up the flash sync on the Nikon to 1/250s AutoFP.
    Thanks for your help.

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