Accessories: Westcott FJ400 II Strobe 1-Light Backpack Kit with FJ-X3S Trigger for Sony at Hunts Photo & Video
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Westcott FJ400 II Strobe 1-Light Backpack Kit with FJ-X3S Trigger for Sony

MFR# 5712SWEST
In-Stock Online
Hunt's Guarantee
$999.90
Quantity

Included Items:

× FJ400 II Strobe, 1 × FJ Pro AC/DC Battery, 1 × Frosted Glass Dome, 1 × Power Adapter & Cord, 1 × 55-Degree Magnetic Reflector, 1 × Magnetic Gel Set (CTO, 1/2-CTO, Window Green, Diffusion), 1 × FJ-X3 Wireless Flash Trigger, 1 × FJ-X3 Battery, 1 × USB-A to USB-C Cable, 1 × Rapid Box Switch Octa-S, 1 × Rapid Box Switch Insert (FJ800, FJ400 II, FJ400, Bowens), 1 × Lite Traveler Backpack


Bundle and save with this 400Ws portable flash kit featuring the industry-leading 0.01–0.9 sec recycle times, cutting-edge features, and consistent color accuracy. With high-capacity AC/DC battery options and full-color OLED touchscreen for effortless control, it's a perfect blend of power and reliability.

Complete Flash Kit for 1-Light Portraits

  • Includes FJ400 II Strobe, FJ Pro AC/DC Battery, FJ-X3 Wireless Trigger, Magnetic Gel Pack, Rapid Box Switch Octa-S with Insert, Lite Traveler Backpack
  • Portable 400Ws strobe with removable FJ Pro AC/DC Battery delivers 550+ full-power flashes
  • Easily control FJ Wireless flashes with the FJ-X3 wireless trigger, available in multi-brand or Sony camera options
  • Unmatched 0.01 to 0.9 sec recycle times ensure you never miss a shot
  • Consistent 5500K (±150K) color temperature stability across a 9-stop energy range
  • Intuitive full-color OLED touchscreen with a built-in help guide for effortless control
  • HSS, TTL, Freeze Sync, Front Curtain Sync, and Rear Curtain Sync options for versatility
  • Short flash duration down to 1/24,000 sec freezes motion with incredible precision
  • Creative Mask enables up to 6 unique lighting combinations without adjusting your setup Integrated IGBT+ technology for expanded camera compatibility and enhanced flash performance
  • Rapid Box Switch softbox provides soft, flattering light with the fastest setup time
  • Backpack with gear compartments, removable dividers, and padded straps for safe transport

A Perfect Blend of Power & Portability

Expanding on the legacy of our flagship FJ400 strobe, the FJ400 II offers 400Ws of flash power in a compact design, striking a perfect balance of power and portability to ensure you never miss a moment.

The Fastest 400Ws AC/DC Strobe

With industry-leading 0.01 to 0.9-second recycle times, the FJ400 II ensures you're never waiting on your light. Whether freezing action outdoors or capturing dynamic portraits in the studio, this strobe keeps up with your creativity.

Flexible AC/DC Power

The FJ400 II features a flexible AC/DC battery system, providing 550+ full-power flashes per charge with the included FJ Pro Battery—or 1,000+ flashes with the optional FJ ProMax Battery. The batteries are also compatible with the FJ800 and offer AC trickle-charge, eliminating the need for multiple power solutions.

Consistent Color Temperature

The FJ400 II maintains a color 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 30W bi-color LED modeling light, adjustable from 2700K to 6500K, with auto-adjust and independent output control.

Color OLED Touchscreen

The full-color OLED touchscreen interface is designed for simplicity and speed, with intuitive gestures like tap, swipe, and slide for quick adjustments. Built-in help guides provide on-screen support, saving time and keeping you focused on creating.

More Looks, Less Effort withCreative Mask

With Creative Mask™, you can offer your clients more variety without adding time to your shoot. Use the touchscreen to choose when each strobe fires and how many frames to capture, creating up to 6 unique lighting combinations in seconds. Ideal for fast-paced environments like sports or volume photography, where variety and efficiency are key.

Optimized for Light Modifiers

The flash's round head and extended flash tube deliver a wide, even light spread to fill modifiers beautifully. Its Bowens mount and Rapid Box Switch Insert ensure seamless compatibility with Westcott's extensive line of portable light modifiers. The tilter bracket also has a 9mm mount for large umbrellas.

Complete Creative Control

This portable strobe also features:

  • Manual and TTL Flash Modes
  • High-Speed Sync (HSS) up to 1/8000s, Freeze Sync, and Front and Rear Curtain Sync
  • Flash durations to 1/24,000s for motion-freezing clarity
  • Continuous Capture up to 50 fps (camera and power dependent)
  • Delay Function and Group Exposure Compensation
  • IGBT+ technology for improved flash control, faster sync speeds, and enhanced compatibility with DSLR and mirrorless cameras
  • 328' wireless range with 16 groups and 31 channels
  • Firmware upgradeable via USB-C

Dedicated Sony CameraCompatibility

When paired with an FJ-X3 S Wireless Trigger, the strobe provides features including High-Speed Sync, TTL, and more. The wireless trigger is designed with a proprietary Sony hot shoe mount for Sony cameras. See the compatibility chart for more details.

Seamless Integration with the FJWireless System

The FJ400 II pairs seamlessly with all flashes and triggers in Westcott's 2.4 GHz FJ Wireless System. Control your setup with an FJ-X Trigger or FJ80 Speedlight, both compatible with major camera brands. The free Westcott StudioLink app lets you adjust settings and unlock advanced functionality directly from your mobile device.

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Strobe Head

  • Maximum Power: 400Ws

  • Energy Range: 9 F-Stop (1.56 – 400Ws)

  • Flash Duration (t0.1):

    – Normal: 1/200 – 1/6540s

    – Freeze: 1/220 – 1/10800s

  • Flash Duration (t0.5):

    – Normal: 1/600 – 1/16500s

    – Freeze: 1/500 – 1/24000s

  • Recycle Time: 0.01s – 0.9s

  • Continuous Capture: 50 FPS (Camera & Power Dependent)

  • Color Temperature Stability:

    – Normal/TTL: 5500K +/-150K

    – HSS: 5500K +/-300K

    – Freeze: 5500K +/-500K (E.R. 3–9)

  • Mounting System: Bowens S-Type

  • Maximum Modifier Load: 20.0 lbs. (9.1 kg) with Switch modifiers

  • Flash Increments: 0.1-Stop and 1-Stop

  • Flash Modes: Manual, TTL

  • Mask Function: Yes (Manual Mode)

  • IGBT: Yes (IGBT+)

  • Exposure Compensation: +/-3

  • Modeling Lamp: LED 30W Bi-color (2700–6500K)

  • Sync Functions: HSS, Front Curtain, Rear Curtain, Freeze

  • Sync Speed: Up to 1/8000s (High-Speed)

  • Wireless Frequency: 2.4 GHz

  • Wireless Channels: 31 (01–31)

  • Wireless Groups: 16

  • Wireless Range: 328' (100m)

  • Optical Sensor: Yes

  • Light Mount Type: 5/8” Receiver, 9mm Round Umbrella Receptacle

  • Auto-Dump: Yes

  • Audible Beep: Yes

  • Delay Function: Yes (Manual)

  • Auto Memory Recall: Yes

  • Heat Protection: Yes

Battery

  • Flashes per Charge:

    – FJ Pro Battery: 550+

    – Optional FJ ProMax Battery: 1000+

  • Battery Type: FJ Pro AC/DC Li-ion Battery

  • Battery Capacity: 74Wh, 2500mAh

  • Battery Voltage: 29.6V

  • Battery Removable: Yes

  • Charge Time: ~1.5 Hours

  • Charge Cycles: 300+ (Maintains 80% capacity after 300 cycles)

  • AC Power Requirement for Charging: Battery Level ≥ 25%

  • Equipment Power Indicator: LED Display

Trigger

  • Flash Compatibility: FJ800, FJ400 II, FJ400, FJ200, FJ80, FJ80 II, FJ80-SE, FJ-XR

  • Camera Compatibility: Canon, Nikon, Sony (with adapter), Fuji, Panasonic Lumix, Olympus

  • Operating Frequency: 2.4 GHz

  • Control Channels: 32 (AU, 1–31)

  • Operating Groups: 6 Native, 10 with Mobile App

  • Control Range: 985' (300m)

  • Control Modes: TTL (Auto), Manual

  • TTL EV Range: +/-3

  • Sync Functions:

    – HSS (up to 1/8000s)

    – Normal (Front & Rear Curtain)

    – Freeze (with compatible devices)

  • Ports: USB-C (Firmware Updates), 2.5mm (Sync Output Only)

  • Mobile App Support: Yes

  • Bluetooth: Yes

  • Firmware Update Methods: PC, Mac

  • Battery (Trigger): Rechargeable Lithium-ion

  • Sync Size: 2.5mm

Electrical

  • Input Power: 100–240 VAC, 50/60 Hz, 1.6A

  • Output Power: DC 33.6V, 2A

  • Battery Type: FJ Pro or optional FJ ProMax AC/DC Li-ion Battery

  • Cable Port: USB-C (Firmware Updates)

  • Cooling System: Self-monitoring Multi-stage Cooling

  • Firmware Upgradable: Yes

  • Control Display: Color OLED Touchscreen

  • Operating Temperature Range: 32° to 113°F (0° to 45°C)

  • Power Cord Length: 9.5' (2.9m)

  • Power Region: Type B (US)

  • Power Supply: 100–240 VAC, 50/60 Hz, 1.5A Max

  • Auto Power Off: Yes

  • Power Type: AC/DC

  • Certifications:

    – FJ400 II: CE, ROHS, FCC

    – FJ Pro Battery: CE, ROHS

    – AC Adapter: CE, cETLus, RoHS

  • USB Capability: USB-C (Firmware Updates)

Mounting

  • Maximum Load Weight: 20 lbs. (9.1 kg)

General

  • Product UPC: 810164331304

  • Package Quantity: 1

  • Product Dimensions: 23.0 × 16.0 × 11.0 in. (58.4 × 40.6 × 27.9 cm)

  • Item Weight: 15.1 lbs. (6.8 kg)

  • Materials: Nylon, Plastic, Aluminum, Rubber, Electrical Components

Use & Care Instructions

  • Wipe with a dry cloth as needed.

  • Keep away from fire, water, and moisture.

  • Do not submerge in water.

  • Avoid drastic temperature changes before, during, and/or after use.

  • Ensure the FJ Strobe is securely mounted before use.

  • Surrounding RF interference may affect communication performance.

  • Do not modify Westcott products; contact Westcott for assistance.

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