Westcott FJ400 Strobe 1-Light Backpack Kit with FJ-X2m Wireless Trigger and Rapid Box Switch Octa-S
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Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
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Never miss a shot again. The FJ400 Strobe is the first portable 400Ws AC/DC strobe with under a second recycle speed at full power that offers an impressive 480+ full-power flashes per charge. The lightweight FJ400 offers unrivaled performance with the most accurate color temperature throughout its entire 9-stop output range. Trigger the flash with the included Westcott FJ-X2m Universal Wireless Trigger or optional Canon RT system.
Controls and Functions
With an intuitive menu system and LCD color display, the FJ400 Strobe features Manual and TTL Flash Modes, High Speed Sync (HSS) up to 1/8000s, Freeze Sync up to 1/19000s, Continuous Capture up to 20 fps, Mask Function, Delay Function, Automatic Memory Recall, and much more. The removable lithium polymer battery provides both DC power for on-location freedom and AC trickle-charge performance when the state of charge is above 25%.
Adjustable Color Temperature
The Westcott FJ400 400Ws Strobe 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 20W 5600K LED modeling lamp with auto-adjust and independent output control. Designed with safety in mind, it is equipped with onboard self-monitoring cooling fans and an automatic shutoff feature to ensure safe operation during use.
Complete System
The extended flash tube provides optimal light output allowing for a wider, even spread for filling light modifiers. Equipped with a Bowens S-Type mounting system, the FJ400 LED Strobe can be easily paired with your favorite softbox. The strobe light also includes a magnetic 5-inch reflector, magnetic CCT gel set, and a Rapid Box Switch Bowens insert. The insert allows you to pair your strobe with any Rapid Box Switch modifier such as the included Rapid Box Switch Octa-S. A USB-C to USB-A cable is also included for installing FJ400 firmware updates.
FJ-X2m Universal Wireless Trigger
The powerful FJ-X2m Universal Wireless Trigger is equipped with multi-brand technology that pairs with virtually any camera brand to trigger the FJ400 Strobe System. This 2.4 GHz remote transmitter offers revolutionary compatibility with many Canon, Nikon, Sony (with adapter), Fuji, Panasonic LUMIX, and Olympus cameras. Mount the FJ-X2m to a camera's hot shoe to wirelessly control the Westcott FJ400's long list of features, including TTL Mode, High-Speed Sync (HSS), Rear Curtain Sync, Canon RT flash compatibility, group and channel assignment, Group Exposure Compensation, TTL to Equivalent Manual, modeling lamp settings, and much more.
Rapid Box Switch Octa-S
The Rapid Box Switch Octa-S provides photographers with a softbox that assembles in seconds. Built with durable framework, long-lasting construction, and color-accurate fabrics, this softbox will simply be the go-to modifier for any FJ400 Strobe shoot.
Lite Traveler Backpack
Equipped with a large, central storage compartment featuring removable dividers, the included backpack is ideal for traveling comfortably with your FJ400 Strobe Kit. The Lite Traveler Backpack features various zippered compartments for storing smaller accessories, like USB tethering cables, batteries, charging cables, lens filters, and more. A separate internal compartment is equipped with three padded sleeves in various sizes for storing laptops, tablets, and more.
Power
| AC Input Power | 100-240 VAC, 50/60 Hz, 1.6A |
Sync
| Wireless Channels / Groups | 16 / 6 |
Battery
| Battery Type | Lithium Polymer |
General
| Weight | 5.44 lb |
Light Fixture
| Color Temperature | 5600K |
| Fixture Dimensions | 11.5 x 4.25 x 4.75 inches |
| Accessory Fitting Type | Bowens S Type |
| Mount Type | Bowens S |
- Normal: 1/280 - 1/3000s
- Freeze: 1/280 - 1/7000s
- Normal: 1/800 - 1/8500s
- Freeze: 1/800 - 1/19000s
- Normal/TTL/HSS: 5500K ±150K
- Freeze: 5500K ±500K (E.R. 5-9)
- DC Power: Adjustable, off approx. 60min; sleep approx. 30min
- AC Power: Adjustable, off approx. 60min; sleep approx. 30min
Westcott FJ400 400Ws Strobe
| Maximum power | 400 Ws |
| Flashes per charge | 480+ at full power |
| Energy range | 9 f-stop (1.56 - 400 Ws) |
| Flash duration (t0.1) | |
| Flash duration (t0.5) | |
| Recycle time | 0.05 - 0.9s (DC battery) |
| Color temperature stability | |
| Mounting System Bowens S-Type | |
| Flash Increments 1-Stop and 0.1-Stop | |
| Flash Modes Manual, TTL | |
| Mask Function Yes (Manual) | |
| Continuous Capture | 20 fps (Camera Model Dependent) |
| IGBT | Yes |
| Flash Exposure Compensation | ±3 |
| Modeling Lamp LED | 20W, 5600K |
| Sync functions | Normal, HSS, Freeze |
| Sync speed | 1/8000 Sec (high-speed) |
| Wireless radio frequency | 2.4 GHz |
| Wireless channels | 16 (0-15) |
| Wireless groups | 6 trigger, 10 App |
| Wireless range | 985 feet (300m) |
| Sleep mode | |
| Display | LCD color display |
| Mount | 5/8-inch receptacle |
| Auto-dump | Yes |
| Fan cooled | Self-monitoring cooling fans |
| Voltage stabilization Yes | |
| Port type USB-C (Firmware) | |
| Auto-power off Yes | |
| Auto multi-voltage | Yes |
| Voltage stabilization | Yes |
| Delay function Yes (manual) | |
| Auto memory Recall Yes | |
| Test button | Yes |
| Audible beep | Yes |
| Umbrella receptacle | Yes |
| Dimming | Yes |
| Modifier | Bowens S-Type |
| DIOD life | 10,000 hours |
| Power type | AC/DC |
| Input range | 100-240 VAC, 50/60 Hz, 1.6A |
| Output range | DC 16.8V, 2A |
| Battery DC input compatibility | AC/DC lithium polymer battery (included) |
| AC power adapter connection type | 5mm barrel plug |
| Power cable length | 92.4 inches |
| Operating temperature | 32 to 104-degree-F |
| Certifications | CE, FCC |
| Product dimensions (L x W x D) | 11.5 x 4.25 x 4.75 inches |
| Product weight | 5.44 lb |
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.









