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Cactus 4-Channel Wireless Flash Trigger Set V2s
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Cactus 4-Channel Wireless Flash Trigger Set V2s

Out of stock
CACTUS Wireless Flash Trigger V2s set now includes the flash stand you’ve been longing for. It’s FREE!

Three components are included in this trigger unit, a transmitter, receiver and a flash stand. The transmitter is to be attached on the hot shoe of the camera while the receiver is to be attached to external flash. Each receiver works with one flash. You can use as many flashes as you wish as long as you have enough receivers.

This trigger set comes with a smooth and slim designed flash stand made of ABS+PC material (rigid & durable).  You need not worry that the receiver will fall over after being attached to your flash. You can attach the flash on the stand alone or with the V2s receiver.  It offers stable and secure hold onto the receiver and flash.  There are 3 different port positions where you can attach the receiver or flash.  On top of acting as an individual stand, you can also connect this to a tripod via the standard 1/4” tripod mount at the bottom.

This wireless slave flash trigger unit triggers other flash units when the transmitter is activated. Several flash units work together helps fill in shadows and improve the evenness of lighting. This trigger set has been tested and proved to be compatible with the largest number of flashes on market. Misfiring problem has been satisfactorily resolved.  

With the wireless flash trigger, you can place the flash at different angles and distances from the object. This is particularly useful for portrait and product photography. Most importantly, without the need to connect the flash by wire or cable, you can move the flash to anywhere that produces the best lighting to the object you shoot. Flexibility provides you with the best result.

The transmitter emits radio signal to the receiver when shutter is pressed. Highest responding time is 1/1000s (actual sync speed varies from 1/125s to 1/600s depending on the sync speed of the flash / strobe).

This flash trigger unit has strong anti-interference function and has four channels for you to choose. It is extremely useful if there are several photographers working nearby. Each photographer could choose their own channel to trigger off the external flash unit they are going to use without triggering others’ because of overlapping signals.

This unit can be triggered continuously for 20,000 times. Triggering voltage is only 0.01mAh so it won’t damage the hot shoe of the camera. The energy-saving design allows you to use the unit for a year without having to change the battery inside.

Apart from the flashed listed in Specifications, this V2s edition is also designed for flashes which (1) comes with trigger voltage lower less than or equal to 12V; and (2) could not be triggered by V1 or V2 receivers. 


Beware not to work via the hot shoe with high voltage flashes or studio strobes with a triggering voltage of 12V or higher; please purchase an extra V2 receiver from us. 

Since the new version runs on different channels, it can only work with V2/V2s receivers and not the previous version. Please purchase the V2/V2s receivers from our eBay store to work with the new version trigger.

CACTUS  Wireless Flash Trigger V2s is different from other wireless trigger available on eBay. It is both CE and FCC** accredited.  It has clear screen-printed FCC marking on both the transmitter and receiver.  A user manual complies with FCC regulations is also included in the trigger set. Our triggers and receivers have undergone thorough testing and been confirmed to work with the largest number of flashes on market. We cannot ensure that flash triggers and receivers other than the Cactus brand will be compatible with ours.

**The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions.

  • Cactus Wireless Flash Trigger Set V2s;
  • Brand: Cactus;
  • FCC and CE accredited;
  • Includes ONE trigger, ONE receiver and ONE flash stand (flash shown in pictures are for demonstration only which is NOT included in this listing);
  • 4 channels selectable;
  • Work with V2/V2s wireless receivers only;
  • Dose NOT work with V1 receiver or 16-channel trigger receiver;
  • Designed for flashes which (1) comes with a trigger voltage lower than 12V and (2) could not be triggered by V1 or V2 receivers;
  • Specifications of flash stand:
    • Dimensions: 10.5 cm (W) x  8.5cm (L) x  1cm (H);
    • Weight: 29oz;
    • Includes 1/4” tripod mount;
    • Attachable to V2/V2s receiver and flash models with standard hot shoe;
  • Compatible models: 
    • Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX II, 430EX, 430EZ, 420EX, 420EZ, 380EX; 
    • Nikon SpeedLite SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24; 
    • Olympus FL-50R, FL-50, FL-36R, FL-36; 
    • Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT; 
    • Sigma EF-530 DG Super, EF-530 DG ST (for Nikon only), EF-500 DG Super, EF-500 DG ST (for Nikon only), EF-430;
    • Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AF, 344D, 333D; 
    • Vivitar 285HV, DF-400MZ, DF-340MZ; 
    • Other flash models with a trigger voltage of 12V or lower;
  • Power Input of Transmitter: L1028 12V 23A small battery (included for testing purpose only);
  • Power Input of Receiver: CR2 3V Alkaline battery (included for testing purpose only; please remember to remove the plastic wrapping before use);
  • Tested effective area: 10m (open area without interference);
  • Maximum triggering voltage via hot shoe: 12V;
  • Responding time: 1/500s - 1/1000s (actual sync speed varies from 1/125s to 1/600s depending on the sync speed of flash / strobe);
  • One PC sync cable (PC male to 3.5mm plug) is included;
  • Receiver comes with PC sync port;
  • Radio working frequency: 433MHz;
  • Net Weight: 78g
  • Brand new, never used.

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We’re Closing!

Gadget Infinity started almost a decade ago, sourcing the best price-performance photographic and two-way radio gear for fellow photography enthusiasts. It has been a wonderful journey sharing the many location portrait techniques with you on our YouTube channel. Over the years our passion in flash photography grew so much that we ventured into creating our own wireless flash triggering system – Cactus.

Starting next month, we will be putting all of our time and effort into product development at Cactus so we will be closing our operation at Gadget Infinity on August 30, 2016. Rest assured, the 30-day return policy still applies on your orders made on or before the date of our store closure. If you have any questions or concerns, please contact us at service@gadgetinfinity.com.

It will be a good bye but not a sad one as we will still stick around. Come visit us at

Thank you again for your support over the years and best wishes!

From everyone at Gadget Infinity.

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