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FJ400 II Touchscreen Strobe with FJ Pro AC/DC Battery (400Ws)
Compact Power, Unmatched Reliability
- Portable 400Ws flash power in a compact design for on-location and studio
- The fastest recycle times from 0.01 to 0.9 sec ensure you never miss a shot
- FJ Pro AC/DC battery delivers 550+ full-power flashes and works on the FJ800
- Reliable 5500K (±150K) color temperature stability
- Full-color OLED touchscreen with built-in help guide for effortless control
- HSS, TTL, Freeze Sync, Front and Rear Curtain Sync, and flash duration to 1/24,000s
- Creative Mask enables up to 6 lighting combinations without moving your setup
- IGBT+ technology enhances camera compatibility and flash performance
- Rapid Box Switch Insert with Bowens mount for attaching light modifiers
- 30W bi-color (2700-6500K) LED modeling light
- Integrates with all FJ Wireless triggers and flashes for a cohesive system
In The Box:
- 1 × FJ400 II Strobe
- 1 × FJ Pro AC/DC Battery
- 1 × Frosted Glass Dome
- 1 × 55-Degree Magnetic Reflector (Bowens)
- 1 × Magnetic Gel Set (CTO, 1/2-CTO, Window Green, Diffusion)
- 1 × Power Adapter & Cord
- 1 × USB Cable
- 1 × FJ400 II Gear Case
- 1 × Rapid Box Switch Insert (FJ800, FJ400 II, FJ400, Bowens)
Flash Head:
- Maximum Power
- 400Ws
- Energy Range
- 9 F-Stop (1.56 - 400 Ws)
- 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
- Max Modifier Load
- 20.0 lbs. / 9.1 kg (using Switch modifiers)
- Flash Increments
- 0.1-Stop and 1-Stop
- Flash Modes
- Manual, TTL
- Mask Function
- Yes (Manual Mode)
- IGBT+
- Yes
- Exposure Compensation
- ±3
- Modeling Lamp
- LED 30W Bi-color (2700-6500K)
- Sync Functions
- HSS, Front Curtain, Rear Curtain, Freeze
- Sync Speed
- 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+ (@80% after 300 cycles)
- AC Power Requirement
- Battery Level ≥25%
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)
- Cooling
- Self-monitoring Multi-stage Cooling System
- Firmware Upgradable
- Yes
- Control Display
- Color OLED Touchscreen
- Operating Temp.
- 32° to 113° (0° to 45°C)
- Power Cord
- 9.5' (2.9m)
- 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
• FJPro Battery: CE, ROHS
• AC Adapter: CE, cETLus, RoHs - USB Capability
- USB-C (Firmware Updates)
Mounting
- Max. Load Weight
- 20 lbs. (9.1 kg)
General
- Package Qty.
- 1
- Product Dimensions
- 9.3 × 4.4 × 6.7 in. (23.5 × 11.2 × 17.0 cm)
- Packed/Folded Size
- 13.0 × 11.4 × 7.5 in. (33.0 × 29.0 × 19.1 cm)
- Item Weight
- 5.3 lbs. (2.4 kg)
- Materials
- Use & Care Instructions
- California Prop. 65
- WARNING!
WARNING: This product can expose you to
chemicals including benzene, which is not present in the final product, but is known to the State of California to cause cancer and birth defects or other reproductive harm.
This warning is required by California Prop. 65. For more information, go to Product Support
Still have questions? We're here to provide you with exceptional support before, during, and after a purchase. Whether you need help choosing the right gear for your job or have technical questions, please reach out to us! We’re available from M-F 9am-5pm ET.
- Chat with us using the button in the bottom corner
- Call us at 419-243-7311
- Visit our Contact page
Buy With It
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.
Interchangeable Battery System
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.
Professional Reliability
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.
Fast & Easy Controls
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 with Creative 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
Say Goodbye to Brand-Specific Triggers
The powerful FJ-X3 M Wireless Trigger is equipped with multi-brand technology that pairs with most camera brands to control 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.
Dedicated Sony Camera Compatibility
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 FJ Wireless 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.
