1.5 stop Deferance In my two RF 60X's

At full power there's a full  1 1/2 stop deference between my two RF60x's. Is there an internal setting that can be reset?

There is a distinct deference in the sound of the two flashes firing, The one with the stronger flash sounds the same as

my Canon 550EX with comparable results.  The weaker of the two RF60X sounds like its firing at 1/2 power.

I am using a V6II to fire them but it is the same manually discharging them.

(Zoomed to the same settings as well is the diffuser and catch light up & slid in.)

Thanks for your help!!



  • Just thought I should add both have firmware 103.

    Fully charged batters with external battery packs (Even rotated the battery's and tried)


  • I just updated to firmware 104 on both RF60X's with same results.
  • Thanks for reporting the issue. Sounds like one of the unit is defective and not related to firmware.  FYI we have never came across such a problem before.

    Please contact the dealer you purchased it from for service.

    Thank you.

    Antonio Lao
    Brand Manager

    To help us better help you, always state the exact firmware version installed on your Cactus device(s), such as: "1.1.013", "NIK.A.001", "v.103", or "A06".

    TTL or HSS not working on Cactus V6 II and V6 IIs? Be sure to check hot shoe connectivity by doing the <CAMERA INFO> check.

    Feel free to suggest an improvement or share product ideas. Contact us directly at info@cactus-image.com.  At Cactus, we listen. 
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