Why we love the FJ100 M Speedlight
It brings 100Ws output, a responsive touchscreen, and the FJ Wireless System into a compact hot-shoe flash. The shared USB-C rechargeable battery, fast recycle time, and Multi-Brand mount make it a flexible choice for photographers working across supported camera systems.
- Maximum Power 100Ws
- Energy Range 0.78-100Ws · 9 stops
- Recycle Time 0.01-1.6 sec
- Battery 575+ full-power flashes
- Wireless 2.4 GHz · up to 328 ft

Product Highlights
- 100Ws output with a nine-stop 0.78-100Ws energy range
- 575+ full-power flashes per charge with the included FJ Mini Battery
- 0.01-1.6 second recycle time with the DC battery
- Manual, TTL, HSS, normal, and Freeze flash operation
- 2.4 GHz FJ wireless system with 31 channels and up to 328 ft range
- 24-200mm zoom head and secure Twist Lock modifier mount
- Color touchscreen plus USB-C charging and firmware updates
- Multi-Brand mount for supported Canon, Nikon, Fujifilm, Panasonic Lumix, and Olympus cameras
What's Included
- Westcott FJ100 M Speedlight
- FJ Mini AC/DC Battery
- Shoe Stand
- USB Cable
- Case
Product Information
The Westcott FJ100 M is a 100Ws touchscreen speedlight with a Multi-Brand hot-shoe mount for photographers working across supported Canon, Nikon, Fujifilm, Panasonic Lumix, and Olympus camera systems. It combines a nine-stop 0.78-100Ws output range with TTL, manual, HSS, normal, and Freeze operation in a compact battery-powered design.
Fast output control on camera or off
A color touchscreen provides direct access to flash settings, while the 24-200mm zoom head and Twist Lock accessory mount help shape and direct the light. Recycle time ranges from 0.01 to 1.6 seconds with the DC battery, and the FJ100 supports continuous capture up to 60 FPS when camera and power conditions allow.
Part of the FJ Wireless System
The integrated 2.4 GHz radio system offers 31 channels, six host groups, 16 client groups, and a wireless range up to 328 feet (100 meters). Creative Mask is available through the mobile app, and the speedlight supports high-speed sync up to 1/8000 second.
Rechargeable AC/DC power
The included 3200mAh FJ Mini AC/DC Battery provides more than 575 full-power flashes per charge and recharges through USB-C in approximately 2.3 hours. USB-C also supports firmware updates from a PC or Mac.
Multi-Brand compatibility
The Multi-Brand mount supports compatible Canon, Nikon, Fujifilm, Panasonic Lumix, and Olympus cameras. Sony cameras operate in Manual mode; the separately sold Sony Adapter #4711 enables TTL and HSS. Confirm exact camera compatibility with Westcott before use.
| Flash | |
|---|---|
| Maximum Power | 100Ws |
| Energy Range | 9 stops (0.78-100Ws) |
| Flash Duration (t0.1) | Normal: 1/540-1/17000s; Freeze: 1/620-1/23000s |
| Flash Duration (t0.5) | Normal: 1/1700-1/31000s; Freeze: 1/2000-1/55600s |
| Recycle Time | 0.01-1.6s (DC battery) |
| Continuous Capture | 60 FPS (camera and power dependent) |
| Color Temperature | Normal/TTL/HSS: 5800K +/-200K; Freeze: 5800K |
| Flash Increments | 0.1-stop and 1.0-stop |
| Flash Modes | Manual, TTL |
| Creative Mask Mode | Yes (mobile app) |
| IGBT+ | Yes |
| Flash Exposure Compensation | +/-3 |
| Modeling Lamp | 3W LED, 5500K +/-200K |
| Sync Functions | HSS, Normal (front and rear curtain), Freeze |
| Sync Speed | Up to 1/8000s (high-speed) |
| Zoom | 24-200mm |
| Wireless | |
|---|---|
| Radio Frequency | 2.4 GHz |
| Channels | 31 (01-31) |
| Groups | 6 host, 16 client |
| Range | Up to 328 ft (100 m) |
| Controls and Construction | |
|---|---|
| Display | LED touchscreen color display |
| Accessory Mounting | Twist Lock mount |
| Camera Mount | Multi-Brand hot shoe |
| Compatibility | Supported Canon, Nikon, Fujifilm, Panasonic Lumix, and Olympus cameras; Sony cameras in Manual mode. Sony Adapter #4711 sold separately for TTL and HSS. |
| Auto-Dump | Yes |
| Cooling | Passive |
| Voltage Stabilization | Yes |
| Thermal Protection | Quadruple-stage |
| Port | USB-C for firmware updates (PC, Mac) |
| Auto Power-Off | Yes |
| Audible Beep | Yes |
| Auto Memory Recall | Yes |
| Maximum Modifier Load | 1 lb / 0.45 kg |
| Dimensions | 7.5 x 3 x 3 in / 19.1 x 7.6 x 7.6 cm |
| Weight | 1.2 lb / 0.54 kg (with battery) |
| Warranty | 1-year limited |
| FJ Mini Battery | |
|---|---|
| Full-Power Flashes | 575+ per charge with FJ100 Speedlight |
| Battery Type | AC/DC lithium-ion |
| Capacity | 23.68Wh, 3200mAh |
| Voltage | 7.4V |
| Charge Indicator | LED |
| Recharge Time | Approx. 2.3 hours |
| Charge Cycles | 300+ |
| Port | USB-C charging |
| AC Power Requirements | Battery level at least 25% |
| Power Cable Length | 2.3 ft (0.7 m) |
| Dimensions | 2.7 x 1.7 x 1.7 in / 6.9 x 4.3 x 4.3 cm |
| Weight | 0.26 lb / 0.12 kg |
| Warranty | 1-year limited |










