Westcott FJ400II Strobe 1-Light Backpack Kit With FJ-X3 M Universal Wireless Trigger
Product Code: 3178216

Westcott FJ400II Strobe 1-Light Backpack Kit With FJ-X3 M Universal Wireless Trigger

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The Westcott FJ400 Strobe 1-Light Backpack Kit With FJ-X3 M Universal Wireless Trigger is the first 400W AC/DC strobe with a recycle time of less than a second at full power and 480+ full-power flashes per charge. This portable flash kit offers unrivalled performance with the most accurate colour temperature throughout its entire 9-stop output range.

Westcott FJ400 Strobe 1-Light Backpack Kit With FJ-X3 M Universal Wireless Trigger Key Features:

  • Includes FJ400 Strobe with AC/DC Battery, FJ-X3 M Universal Wireless Trigger, Magnetic Gel Pack, Rapid Box Switch Octa-S with Insert, Lite Traveller Backpack
  • 400 Watt-second strobe with 480+ full-power flashes per charge
  • 2.4 GHz wireless trigger for Canon, Nikon, Sony (in manual mode), Fuji, Panasonic Lumix, and Olympus cameras and flash systems
  • 0.05 to 0.9 second recycle time
  • Removable AC/DC lithium polymer battery
  • Colour temperature stability of 5500K (±150K) across entire energy range
  • High-Speed Sync, TTL, and Freeze, Front and Rear Curtain Sync capable
  • Adjustable 9 F-stop energy range in 0.1 and 1.0 increments
  • Continuous Capture up to 20 frames per second (camera model dependent)
  • 16 groups and 32 wireless channels

Never Miss a Shot Again

The FJ400 is the first portable 400W AC/DC strobe with under a second recycle speed at full power and an impressive 480+ full-power flashes per charge. The lightweight FJ400 offers unrivalled performance and the most accurate colour temperature throughout its entire 9-stop output range.

TTL, High-Speed Sync, Freeze Sync, and More

With an intuitive menu system and LCD colour display, the FJ400 features Manual and TTL Flash Modes, High-Speed Sync (HSS) up to 1/8000s, Freeze Sync up to 1/19000s, Continuous Capture up to 20 fps, Mask Function, Delay Function, Automatic Memory Recall, Rear Curtain Sync, Group and channel assignment, Group Exposure Compensation, and much more. This strobe is firmware upgradeable via the included USB-C cable.

Say Goodbye to Brand-Specific Triggers

The powerful FJ-X3 M Universal Wireless Trigger is equipped with multi-brand technology that pairs with most camera brands to trigger the FJ Wireless devices. This wireless remote offers revolutionary compatibility with many Canon, Nikon, Sony (in manual mode), Fuji, Panasonic Lumix, and Olympus cameras. See the compatibility chart for more details.

Unrivalled Battery Performance

The removable lithium polymer battery provides both DC power for on-location freedom and AC trickle-charge performance when the state of charge is above 25%.

Consistent Colour Temperature at Every Power Level

The FJ400 maintains a colour temperature stability of 5500K (±150K) throughout its entire 9-stop output range, with flash increments of either 0.1 or 1.0 stops. It features a 20W 5600K LED modelling lamp with auto-adjust and independent output control.

Optimised for Light Modifiers

The extended flash tube provides optimal light output, allowing for a wider, even spread for filling light modifiers. Equipped with a Bowens S-Type mounting system, the FJ400 is easy to pair with your favourite softbox.

The FJ400 includes a Magnetic 5” Reflector, Magnetic CCT Gel Set (CTO, 1/2-CTO, Window Green, Diffusion, Gel Frame), and a Rapid Box Switch Bowens Insert that allows you to pair your strobe with any Rapid Box Switch light modifier. The built-in tilter bracket with a tension screw offers secure mounting and positioning of large umbrellas and modifiers.

What’s in the box?

  • 1 x FJ400 Strobe
  • 1 x FJ400 AC/DC Lithium Polymer Battery
  • 1 x FJ400 Glass Dome
  • 1 x FJ400 AC Power Adapter & Cord
  • 1 x FJ400 55-Degree Magnetic Reflector (FJ400/Bowens/Godox Mount)
  • 1 x FJ400 Magnetic Gel Set (5.5" CTO, 1/2-CTO, Window Green, Diffusion, Gel Frame)
  • 1 x FJ-X3 M Universal Wireless Flash Trigger
  • 1 x FJ-X3 Lithium-ion Battery
  • 1 x USB-C To USB-A Cable
  • 1 x Rapid Box Switch Octa-S
  • 1 x Rapid Box Switch Insert (FJ400, Bowens, Godox)
  • 1 x Lite Traveller Backpack
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Product Specification

AC Input Power 100-240 VAC, 50/60 Hz, 1.6A
Accessory Mount Bowens S-Type
Colour Temperature [k] Normal/TTL/HSS: 5500K ±150K
Cooling System Self-Monitoring Cooling Fans
Fixture Mount 5/8” Receiver, 8mm Round Umbrella Receptacle
Flash Duration Flash Duration (t0.1): Normal: 1/280 - 1/3000s, Freeze: 1/280 - 1/7000s, Flash Duration (t0.5): Normal: 1/800 - 1/8500s, Freeze: 1/800 - 1/19000s
Included Accessories FJ400 AC/DC Lithium Polymer Battery, FJ400 Glass Dome, FJ400 AC Power Adapter & Cord, FJ400 55-Degree Magnetic Reflector (FJ400/Bowens/Godox Mount), FJ400 Magnetic Gel Set (5.5" CTO, 1/2-CTO, Window Green, Diffusion, Gel Frame), FJ-X3 M Universal Wireless Flash Trigger, FJ-X3 Lithium-ion Battery, USB-C To USB-A Cable, Rapid Box Switch Octa-S, Rapid Box Switch Insert (FJ400, Bowens, Godox), Lite Traveler Backpack
Modelling Lamp LED 20W 5600K ±200K
Power Source 100-240 VAC, 50/60 Hz, 1.6A
Recycling Time 0.05 - 0.9s
Size [cm] 58.4 x 40.6 x 27.9
Weight [kg] 6.80
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Your flexible credit options available

Interest Bearing

with a choice of repayment plans over 24 or 36 months 13.9% APR (representative)

Buy now pay later

36 month loan with a six month deferral period, 18.9% APR (representative)

Interest Bearing Finance

This option comprises term loan with a choice of repayment plans over:

  • 24 months
  • 36 months

The balance of the finance agreement is payable directly to Novuna Consumer Finance in equal monthly instalments by monthly direct debit. The direct debit payments will commence at the end of the first month following receipt of your goods. The interest rate charged is 13.9% APR (representative). Late payment and early repayment penalties apply; full details of these will be provided in the loan agreement pack.

For customers based in the Channel Island, please call us to apply for finance

  24 Months  36 Months 
Cash price  £709.00  £709.00
Deposit £0.00 £0.00
Loan Amount £709.00 £709.00
Monthly Instalment 23 x £33.73 35 x £23.92
Final Instalment £33.73 £23.92
Total Amount Repayable £809.52 £861.12
Representative 13.9% APR 13.9% APR

Buy now pay later

The Buy Now Pay Later option comprises a 36 month loan following a six month deferral period.

During the six-month deferral period, it is possible to pay off the loan, either by way of a lump sum or in smaller amounts. If the loan is partially repaid within six months, the remaining interest will be adjusted to reflect the new balance. If the loan is fully repaid within the six-month deferral period, then no interest is payable, however, a £29 early settlement fee is payable in respect of repayments within these six months.

Following the six-month deferral period, Novuna Personal Finance will initiate a monthly direct debit payment for the remaining duration of the loan. Interest will be charged at a rate of 18.9% APR (representative) on outstanding balances (backdated to the first date of the loan). Novuna Personal Finance will send a reminder letter approximately one month before the six-month deferral period is due to elapse.

For customers based in the Channel Island, please call us to apply for finance

  Balance settled in full within the six month deferral period Balance NOT settled in full within the six month deferral period
Cash price £300 £300
Deposit £0 £0
Loan Amount £300 £300
Settlement fee £29 £0
Settlement payment £329 -
Monthly Instalment - 36 x £11.57
Total Amount Repayable £329 £416.52
Representative 18.9% APR 18.9% APR


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Product Code: 3178216-wex Manufacturers Part Number: 5712M-AG