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Compact rectangular speedlight with matte black finish and front touchscreen display

Westcott

Westcott FJ100 S 100Ws Touchscreen Speedlight for Sony

SKU CH-KB5P-RKZD4

A 100Ws speedlight with .01-1.60s recycle, 2.4 GHz wireless up to 328 feet, TTL and High-Speed Sync to 1/8000, and a 3200mAh battery delivering 575+ full-power flashes

  • 100Ws output for powerful subject illumination
  • 01-1.60s recycle captures fast action sequences
  • 4 GHz wireless sync reaches 328ft range
  • Manual and TTL modes with 1/8000 high-speed sync
  • 3200mAh battery delivers 575+ full-power flashes

Compact 100Ws Speedlight for Sony

The Westcott FJ100 S delivers 100Ws of portable flash power in a compact speedlight body built for Sony cameras. It suits wedding, event and on-location photographers who need reliable illumination without the bulk of a studio strobe. The integrated 2.4 GHz transceiver lets the unit work on-camera as a master or off-camera as a wireless client.

2.4 GHz wireless range and recycle limits

Wireless control reaches up to 328 feet, so the signal holds across large venues but drops beyond that distance. Recycle time spans .01 to 1.60 seconds depending on power level, meaning very rapid bursts are possible at lower output while full-power shots need a longer wait. High-speed sync operates up to 1/8000 second for bright ambient conditions.

575 full-power flashes per charge

The 3200mAh FJ Mini battery provides 575+ full-power flashes on a single charge, defining how long you can shoot before swapping or recharging. USB-C charging lets you top up during breaks, and the same battery fits the FJ100 Strobe to reduce spare-part count. Buyers needing more full-power cycles per session should plan for extra batteries.

Highlights

  • 100Ws output for powerful subject illumination
  • 01-1.60s recycle captures fast action sequences
  • 4 GHz wireless sync reaches 328ft range
  • Manual and TTL modes with 1/8000 high-speed sync
  • 3200mAh battery delivers 575+ full-power flashes

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the Sony-dedicated FJ100 S or a universal model?

The FJ100 S is built for Sony TTL and High-Speed Sync up to 1/8000, so choose it when you shoot Sony bodies and want full camera integration.

What does 100 Ws actually give me on location?

100 Ws provides strong fill or key light for portraits and small groups, with 575+ full-power pops per 3200 mAh charge.

How far and fast does the 2.4 GHz radio work in practice?

The built-in 2.4 GHz FJ transceiver reaches 328 ft and recycles in 0.01–1.60 s, keeping multi-flash setups responsive.

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