The Westcott FJ400 II builds on the success of its predecessor with a host of intelligent upgrades tailored for modern photographers who demand both performance and flexibility. At the heart of its user experience is a full-color OLED touchscreen that enables intuitive navigation through settings via simple tap, swipe, and slide gestures. This interface includes a built-in help guide for added convenience. Complementing the improved user interface is a powerful 30W bi-color LED modeling light, adjustable from 2700K to 6500K, with independent output and auto-adjust capabilities to meet varying lighting needs.
Engineered for speed and consistency, the FJ400 II delivers 400Ws of power with industry-leading recycle times as fast as 0.01 seconds and flash durations as short as 1/24,000s in Freeze mode. Its 9-stop energy range (1.56–400Ws) can be adjusted in 0.1 or 1.0-stop increments, ensuring exceptional control in both studio and on-location environments. The strobe supports manual and TTL flash modes, high-speed sync (HSS) up to 1/8000s, and both front and rear curtain sync for advanced creative control. With continuous capture capabilities up to 50 fps (camera and power dependent), the FJ400 II keeps pace with fast-action shooting.
One standout feature is Creative Mask™, which allows users to create up to six unique lighting combinations without physically moving any light fixtures. This feature is ideal for high-volume or fast-paced photography, enabling the capture of multiple dynamic looks in one session with ease. Each light’s firing sequence can be controlled via the touchscreen, making it a time-saving asset in workflows where efficiency and variety matter.
The FJ400 II is powered by a high-capacity 29.6V, 2500mAh lithium-ion battery that provides over 550 full-power flashes per charge. For extended sessions, an optional FJ ProMax battery delivers up to 1,000 full-power flashes. Shared battery compatibility with the FJ800 simplifies power management, while the AC trickle-charge function ensures the strobe stays powered during lengthy shoots. The battery features LED indicators to monitor charge levels and recharges fully in approximately 1.5 hours.
Integration into the broader Westcott lighting ecosystem is seamless. The FJ400 II features a built-in 2.4 GHz radio with 31 channels and 16 groups, offering a reliable wireless range of up to 328 feet. It’s compatible with all FJ wireless triggers and flashes, including the FJ-X3 and FJ80 units. When paired with the optional FJ-X3 S trigger, the FJ400 II unlocks full TTL and HSS functionality for Sony cameras. Additionally, the Westcott StudioLink mobile app allows remote adjustment of settings and advanced system control directly from a smartphone.
Physically, the FJ400 II maintains a compact, lightweight design at just 5.3 lb, making it highly portable for on-the-go creatives. Its Bowens S-Type mount ensures compatibility with a wide range of modifiers, including the Westcott Rapid Box Switch system. The extended flash tube and round head provide a broad, even light spread, ideal for filling softboxes and umbrellas. The integrated tilter bracket includes a 9mm umbrella receptacle, supporting modifiers up to 20 lbs for versatile light-shaping capabilities.
The strobe also incorporates professional features such as IGBT+ technology for faster sync speeds and enhanced exposure accuracy, exposure compensation from -3 to +3 EV, a delay function, optical sensor, auto-dump, auto-memory recall, and multi-stage cooling for thermal protection. Its power supply supports universal AC voltage (100–240V), and firmware updates are accessible via a USB-C port to ensure long-term performance.
In short, the Westcott FJ400 II offers a well-rounded solution for photographers who demand precision, speed, and ease of use—whether shooting portraits in the studio or fast-paced action on location. With unmatched recycle speeds, flexible power options, and a fully integrated wireless ecosystem, it redefines what’s possible in a portable 400Ws strobe.
