Westcott FJ400 II 400Ws Touchscreen Strobe – UK

Overview
Westcott FJ400 II 400Ws Touchscreen Strobe – UK 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. 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.

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 flash 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. The full-colour OLED touchscreen interface is designed for simplicity and speed, with intuitive gestures like tap, swipe, and slide for quick adjustments. The strobe also offers features such as High-Speed Sync, TTL, Freeze Sync, and Front and Rear Curtain Sync, making it a versatile and reliable tool for photographers.

Included in 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)

About the Westcott FJ400 II 400Ws Touchscreen Strobe – UK
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.

Speed & Performance
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.

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 Colour Temperature

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

Fast & Easy Controls
Colour OLED Touchscreen

The full-colour 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

MULTI-BRAND

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.

SONY

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.

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)
Colour 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-colour (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 Colour OLED Touchscreen
Operating Temp. 32° to 113° (0° to 45°C)
Power Cord 9.5′ (2.9m)
Power Region Type G (UK)
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
Product UPC 810164331427
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 Nylon, Plastic, Aluminium, 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.

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) colour temperature stability
Full-colour 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-colour (2700-6500K) LED modeling light
Integrates with all FJ Wireless triggers and flashes for a cohesive system