Westcott

Westcott FJ400 Wireless Studio Strobe Kit

4.3 (16 reviews)
USB-C5.8 lbs

Versatile 400Ws wireless strobe kit that delivers consistent color and blazing recycle times for portrait, event, and on-location work

$599.90*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Westcott FJ400 is built for photographers who need dependable, powerful light that moves seamlessly between studio and location. Whether you're lighting a corporate headshot session in a conference room, freezing motion at a wedding reception, or setting up a multi-light editorial shoot on a rooftop, the FJ400's 400Ws output and high-speed sync up to 1/8000s give you the creative control to overpower ambient light or blend with it. The kit format — complete with the FJ-X3m wireless trigger, magnetic gel set, 55-degree reflector, and a purpose-built gear case — means you can unpack and start shooting without sourcing accessories piecemeal.

In hand, the FJ400 feels solidly built without being unwieldy. The controls are straightforward, with a clear LCD panel that lets you dial power adjustments quickly between setups. The lithium-ion battery locks in securely and delivers enough capacity for a full day of moderate shooting. Bowens mount compatibility is the real workhorse detail here — it means your existing softboxes, octaboxes, and beauty dishes attach instantly, protecting your investment in modifiers. Over extended sessions, the consistent 5500K output proves its worth: skin tones stay true from the first frame to the last, and you spend less time wrestling with white balance shifts in post-production.

Key Features

INCLUDED - Westcott FJ400 400Ws Strobe, Battery, Dome, Magnetic Gel Set, AC Adapter & Cord, 55-Degree Reflector, USB-C Cable, Gear Case, FJ-X3m Trigger, Microfiber Cloth & more!

SUPERIOR POWER - Unleash 400Ws of power for versatile lighting, perfect for portraits, events, and studio photography. Achieve stunning results with every shot, enhanced by a guide number of 213ft (65m)!

BLAZING RECYCLE TIME - Experience minimal downtime with a rapid 0.05 to 0.9 second recycle time. Capture every fleeting moment without missing a beat, ensuring continuous shooting sessions.

EXCEPTIONAL COLOR ACCURACY - Achieve true-to-life colors with a stable 5500K color temperature (+/-150K in Normal/TTL/HSS mode). Ensures consistent and accurate results, shot after shot.

TTL COMPATIBILITY - Seamlessly integrates with various camera systems via the FJ-X3m trigger, offering TTL, HSS, and manual modes. Enjoy effortless control and precise adjustments for perfect exposures.

ROBUST BUILD QUALITY - Designed for durability with a rugged build, this monolight weighs only 5.8 lbs (2.6 kg). The Bowens S Mount provides compatibility with a wide range of modifiers.

High-Speed Sync up to 1/8000s, TTL, and Rear Curtain Sync capable

Continuous Capture up to 20 frames per second

6 groups and 31 wireless channels

Specifications

Power Output
400Ws
Recycle Time
0.05–0.9 seconds
Power Range
9-stop
Color Temperature
5500K (+/-150K in Normal/TTL/HSS)
Sync Modes
High-Speed Sync, Rear Curtain Sync, TTL
Flash Sync Speed
Up to 1/8000s
Continuous Shooting
Up to 20 fps
Wireless Channels
31 channels, 6 groups
Battery
14.8V, 4400mAh lithium-ion polymer
Flashes Per Charge
480 at full power
Modeling Light
20W LED
Mount Type
Bowens S Mount
Wireless Trigger
FJ-X3m Universal Wireless Flash Trigger
Guide Number
213 ft (65m)
Weight
5.8 lbs (2.6 kg)

Pros & Cons

👍 Pros

  • Rapid 0.05-second recycle at lower power lets you keep pace with fast-moving portrait sessions and event coverage without waiting on your light
  • Battery operation with 480 full-power flashes per charge gives you genuine all-day location freedom without hunting for outlets
  • Bowens S Mount opens up a massive ecosystem of modifiers so you can shape light exactly how you envision the shot
  • Stable 5500K color temperature means consistent skin tones across an entire shoot, reducing batch correction time in post
  • The included FJ-X3m trigger, gels, reflector, and carrying case make this a grab-and-go kit straight out of the box

👎 Cons

  • At 5.8 lbs the strobe head adds noticeable weight to a light stand, especially when paired with larger modifiers on boom arms
  • The FJ-X3m trigger included with this kit is Canon-compatible, so shooters on other systems will need to purchase the appropriate trigger version separately
  • The 20W LED modeling light is useful for previewing light direction but lacks the output to serve as a continuous video light in most situations
  • The 9-stop power range, while adequate for most work, may leave you wanting finer control at the very lowest settings for close-up macro lighting

Frequently Asked Questions

The included FJ-X3m trigger provides TTL, HSS, and manual control across multiple camera systems. The trigger communicates wirelessly with the strobe, so you get full TTL metering and high-speed sync up to 1/8000s regardless of your shooting pace.
Yes. The FJ400 runs on a 14.8V lithium-ion polymer battery that delivers approximately 480 full-power flashes per charge. You can shoot an entire portrait session or event on a single battery, then switch to AC power in the studio.
The FJ400 uses a Bowens S Mount, which is the most widely supported modifier mount in the industry. Any Bowens-compatible softbox, beauty dish, or reflector will attach directly without adapters.
The FJ400 holds 5500K within +/-150K in Normal, TTL, and HSS modes. This means you can adjust power between shots during a session and maintain consistent white balance without heavy correction in post.
The strobe supports burst shooting up to 20 frames per second with a recycle time as fast as 0.05 seconds at lower power settings. At full 400Ws output, recycle time is 0.9 seconds.