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Our last major sale of the year is coming up on December 12-14th. A great time to shop with us and get expert advice from brand representatives.
Our last major sale of the year is coming up on December 12-14th. A great time to shop with us and get expert advice from brand representatives.

Westcott FJ400 II Touchscreen Strobe with FJ Pro AC/DC Battery (400Ws)

Original price $649.90
Original price $649.90 - Original price $649.90
Original price $649.90
Current price $549.90
$549.90 - $549.90
Current price $549.90
SKU 18584
Minimum quantity allowed is .
Maximum quantity allowed is .
The product can be bought in quantity increments of .

Westcott FJ400 II Touchscreen Strobe with FJ Pro AC/DC Battery

The Westcott FJ400 II Touchscreen Strobe redefines portable lighting with unmatched speed, reliability, and color accuracy. Delivering 400Ws of flash power, unmatched 0.01 to 0.9 sec recycle times, and consistent 5500K color accuracy, the FJ400 II ensures you’re prepared for any lighting scenario. Featuring a flexible AC/DC battery system and a compact design, it offers portability and rugged durability for both studio and on-location shoots. 
  
The FJ400 II sets a new standard with a full-color OLED touchscreen, built-in help guides, shared battery compatibility with the FJ800, and innovative features like Creative Mask. It’s the strobe that empowers you to create without limits.

Interchangeable AC/DC Batteries 

The FJ400 II features a flexible AC/DC battery system, providing 550+ full-power flashes per charge with the included FJ Pro Battery—or up to 1,000+ flashes with the optional FJ ProMax Battery. Shared compatibility with the FJ800 simplifies your setup by eliminating the need for multiple power solutions. Convenient AC trickle-charge functionality ensures uninterrupted performance during extended sessions. 

Consistent Light Quality for Professional Results 

The FJ400 II ensures precision and reliability with 5500K color accuracy across its 9-stop energy range (1.56–400Ws), adjustable in 0.1 or 1.0 stop increments. Its 30W bi-color LED modeling light, adjustable from 2700K to 6500K, allows for easy framing and composition, ensuring professional results every time. 

Effortless Control at Your Fingertips 

The FJ400 II’s intuitive interface and full-color OLED touchscreen make adjustments as easy as using your smartphone. Built-in help screens guide photographers of all levels, letting you focus on creating instead of navigating complex menus.

More Looks, Less Effort with Creative Mask 

Creative Mask lets you create up to 6 unique lighting configurations without moving your lights. Using the intuitive touchscreen, you can set the number of frames, assign when each strobe fires, and easily capture dynamic looks or layered composites. A game-changer for high-volume or fast-paced shoots, Creative Mask saves time, delivers multiple looks from a single setup, and unlocks endless creative possibilities.

Optimized for Light Modifiers 

Engineered for versatility, the FJ400 II features an extended flash tube for a wide, even light spread to fill modifiers. The Bowens S-Type mount and included Switch Insert make it ready to pair with Westcott’s portable Rapid Box Switch light modifiers. 
  
The FJ400 II comes with a Magnetic 5” Reflector, Magnetic CCT Gel Set with CTO, 1/2-CTO, Diffusion, and Window Green gels. The built-in tilter bracket with 9mm umbrella mount offers secure mounting and precise positioning of umbrellas and modifiers.

Versatile Features for Complete Control 

The FJ400 II offers a range of features for full lighting control, including: 

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

The FJ400 II is part of Westcott’s 2.4 GHz FJ Wireless System, pairing seamlessly with all FJ triggers and flashes for a cohesive lighting ecosystem. Control your setup with the FJ-X Trigger or FJ80 Speedlight, both compatible with major camera brands. The free Westcott StudioLink app offers wireless adjustments and advanced functionality directly from your mobile device.

Trusted Support

Westcott is known for exceptional customer service, giving photographers the confidence to create without worry. With responsive technical support, a reliable warranty, and a comprehensive library of educational content, the FJ400 II is backed by the dependability photographers value most, ensuring your gear performs when it matters.

Features:

  • Portable 400Ws of power in a compact design for on-location and studio shoots 
  • Unmatched 0.01 to 0.9 sec recycle times ensure you never miss a shot 
  • Delivers 550+ full-power flashes per charge, or 1,000+ with the optional FJ ProMax Battery for extended shoots
  • Shared AC/DC battery system with the FJ800 eliminates the need for multiple power solutions
  • 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
  • Includes a free Bowens Insert for attaching versatile Rapid Box Switch light modifiers
  • Adjustable 30W bi-color (2700-6500K) LED modeling light    Seamlessly pairs with all FJ Wireless triggers and flashes for a cohesive lighting ecosystem    
  • Backed by Westcott’s trusted warranty, free educational videos, and lifetime US-based support

App:

StudioLink

Product SKU:

5700

In The Box:

Westcott FJ400 II Touchscreen Strobe with FJ Pro AC/DC Battery (400Ws)
Westcott FJ Pro AC/DC Battery
Frosted Glass Dome
55-Degree Magnetic Reflector (Bowens)
Magnetic Gel Set (CTO, 1/2-CTO, Window Green, Diffusion)
Power Adapter & Cord for FJ Pro & ProMax Batteries
USB Cable
Westcott Rapid Box Switch Insert (Bowens) 
Westcott FJ400 II Gear Case

Glazer's SKU 18584
Manufacturer Westcott
MFG SKU FJW5700
Product Specs

Flash Head:

Maximum Power400Ws
Energy Range9 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 Time0.01s - 0.9s
Continuous Capture50 FPS (Camera & Power Dependent)
Color Temperature Stability• Normal/TTL: 5500K ±150K
• HSS: 5500K ±300K
• Freeze: 5500K ±500K (E.R. 3-9)
Mounting SystemBowens
Max Modifier Load20.0 lbs. / 9.1 kg (using Switch modifiers)
Flash Increments0.1-Stop and 1-Stop
Flash ModesManual, TTL
Mask FunctionYes (Manual Mode)
IGBT+Yes
Exposure Compensation±3
Modeling LampLED 30W Bi-color (2700-6500K)
Sync FunctionsHSS, Front Curtain, Rear Curtain, Freeze
Sync Speed1/8000s (High-Speed)
Wireless Frequency2.4 GHz
Wireless Channels31 (01-31)
Wireless Groups16
Wireless Range328' (100m)
Optical SensorYes
Light Mount Type5/8” Receiver, 9mm Round Umbrella Receptacle
Auto-DumpYes
Audible BeepYes
Delay FunctionYes (Manual)
Auto. Memory RecallYes
Heat ProtectionYes

Battery:

Flashes per Charge• FJ Pro Battery: 550+
• Optional FJ ProMax Battery: 1000+
Battery TypeFJ Pro AC/DC Li-ion Battery
Battery Capacity74Wh, 2500mAh
Battery Voltage29.6V
Battery RemovableYes
Charge Time~1.5 Hours
Charge Cycles300+ (@80% after 300 cycles)
AC Power RequirementBattery Level ≥25%

Electrical:

Input Power100-240 VAC, 50/60 Hz, 1.6A
Output PowerDC 33.6V, 2A
Battery TypeFJ Pro or optional FJ ProMax AC/DC Li-ion Battery
Cable PortUSB-C (Firmware)
CoolingSelf-monitoring Multi-stage Cooling System
Firmware UpgradableYes
Control DisplayColor OLED Touchscreen
Operating Temp.32° to 113° (0° to 45°C)
Power Cord9.5' (2.9m)
Power RegionType B (US)
Power Supply100-240 VAC, 50/60 Hz 1.5A Max
Auto. Power OffYes
Power TypeAC/DC
Certifications• FJ400 II: CE, ROHS, FCC
• FJPro Battery: CE, ROHS
• AC Adapter: CE, cETLus, RoHs
USB CapabilityUSB-C (Firmware Updates

Mounting:

Max. Load Weight20 lbs. (9.1 kg)

General:

Product UPC810164330932
Package Qty.1
Product Dimensions9.3 × 4.4 × 6.7 in. (23.5 × 11.2 × 17.0 cm)
Packed/Folded Size13.0 × 11.4 × 7.5 in. (33.0 × 29.0 × 19.1 cm)
Item Weight5.3 lbs. (2.4 kg)
MaterialsNylon, 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.
• 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.