Westcott FJ400 Strobe 1-Light Backpack Kit with FJ-X3m Universal Wireless Trigger

SKU #:W4712M MFR #:4712M
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Westcott FJ400 Strobe 1-Light Backpack Kit with FJ-X3m Universal Wireless Trigger
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Westcott FJ400 Strobe 1-Light Backpack Kit with FJ-X3m Universal Wireless Trigger

the FJ400 Strobe 1-Light Backpack Kit with FJ-X3m Universal Wireless Trigger from Westcott is a comprehensive assemblage that combines the FJ400 Strobe with accessories that allow you to make the most of the fixture. The kit contains the FJ400 Strobe with battery, a diffusion dome, AC adapter and cord, magnetic reflector, magnetic gel set, FJ-X3m flash trigger, two USB cables, and a Rapid Box Octa-S and insert. A Lite Traveler Backpack is included to carry it all.

The FJ400 Strobe has power, fast response, and the asset of a removable, rechargeable, lithium-ion battery that will give you 480 full-power flashes on a two-hour charge. The FJ400 has a nine-stop power range in 0.1 stop increments and recycles in a fast 0.5 to 0.9 seconds. It is backed by a 1/19,000 peak action-stopping flash duration in Freeze Mode, is capable of 20 fps, and supports High Speed Sync up to 1/8000 second as well as front and rear curtain sync.

One of the FJ400's exciting features is its TTL option. The flash has an integrated 2.4 GHz receiver that has 16 channels, and 32 groups that with an FJ-X3m trigger will accept TTL signals at a distances up to 985' from Canon, Nikon, Sony (with adapter), FUJIFILM, Panasonic Lumix, and Olympus cameras. The flash has a 5/8" receiver to mount on industry-standard light stands, as well as a USB-C port for Windows and Mac firmware updates.


  • 1 x FJ400 Strobe and Battery
  • 1 x AC Power Adapter and Cord
  • 1 x FJ-X3m Wireless Flash Trigger
  • 2 x USB-C to USB-A Cables
  • Recycling: 0.5 to 0.9 sec, Supports HSS
  • 1 x Diffusion Dome
  • 1 x Magnetic Reflector and Grid Set
  • 1 x Rapid Box Octa-S and Insert
  • Lite Traveler Backpack
  • Built-In Receiver
Maximum Power:
400 Ws
Power Control:
9 Stops
Flash Duration:
t.1: 1/800 to 1/19,000 Sec
Recycle Time:
0.5 to 0.9 Sec
Burst Rate:
20 fps
Color Temperature:
5600K +/- 200K
Flash Ready Indicator:
No Indicator
5.5" / 139.7 mm 55° Changeable
Accessory Fitting Type:
Bowens S Type
Color Temperature:
Sync Type:
Cable, Optical, Radio
Built-In Wireless Receiver:
Sync Speed:
1/8000 Sec (High-Speed)
Wireless Channels / Groups:
32 / 16
Wireless Range:
985' / 300.2 m (Radio)
Power Source:
AC Adapter, Integrated Battery
AC Input Power:
100 to 240 VAC, 50 / 60 Hz
1.6 A (Operating)
Battery Chemistry:
Lithium-Ion Polymer (LiPo)
Maximum Output Voltage:
16.8 VDC
Capacity (mAh):
4400 mAh
Flashes Per Charge:
480 Flashes (Full Power)
Recharge Time:
2.5 Hours
5/8" / 16 mm Receptacle
Auto Dump:
No Auto Dump
Fan Cooled:
No Fan Cooling
Operating Temperature:
14 to 104°F / -10 to 40°C
H: 4.3 x W: 4.8 x L: 11.5" / H: 109.2 x W: 121.9 x L: 292.1 mm
5.4 lb / 2.4 kg
Package Weight:
13.035 lb
Box Dimensions (LxWxH):
15.7 x 14.8 x 9.6"
  • FJ400 Lithium-Ion Battery
  • Diffusion Dome
  • FJ400 AC Power Adapter and Cord
  • FJ400 5.5" Magnetic Reflector
  • FJ400 Magnetic Gel Set
  • FJ-X3m Universal Trigger
  • FJ-X3 Li-Ion Battery
  • 2 x USB-C To USB-A Cables
  • Rapid Box Octa-S
  • Rapid Box Switch Insert (Bowens)
  • Lite Traveler Backpack
  • Limited 1-Year Manufacturer Warranty