Broncolor Siros 400 L Outdoor Kit 2

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Product Highlights

  • 440 Full-Power Flashes
  • Li-Ion Battery
  • 70-Minute Recharge
  • 0.03 - 1.2 Sec Recycling
  • Speed Mode Flash Duration: 1/18000 Sec
  • 9-Stop Flash Range
  • Built-In Wi-Fi and RFS Receiver
  • bronControl App
  • Up to 50-Shot Flash Sequencing


Receive a bonus additional battery when you purchase the Siros 400 L or 800 L. The offer is available with both single heads and kits.

Offer available until 30 September 2018.

SIROS L – cordless, compact, fast and powerful

The Siros L is broncolor’s battery-powered compact Monobloc, which provides professional photographers with the opportunity to enjoy perfect studio and location lighting, offering fast recycling times and a fast flash duration.

With the latest lithium-ion technology, a single battery, in spite of its very compact size and weight, can charge a Siros 400 L up to full power 440 times. Reduce the output - for example by just 2 f-stops - and you can have over 1700 flashes. The battery-pack can be used over a very wide temperature range from -10° to 60°C (14° to 140°F). Once depleted it can be completely recharged in only 75 minutes.

The Siros L uses the Swiss manufacturer’s ECTC technology, already featured in the Scoro and Move packs, enabling Siros L to have flash durations of up to 1/19'000 s (t0.5) and guaranteed constant colour temperature over the entire control range. 

While Siros L is absolutely ideal for outdoor use, it can also be used in the studio where it can be easily integrated into existing broncolor studio equipment and is compatible with the full range of broncolor lightshapers. 

Operation: as simple as possible for maximum convenience

All the basic functions of Siros L can be operated using the free “bronControl” app. As soon as Siros L is logged in to the WiFi network, you can control several devices using a smartphone or tablet with each clearly identi ed by different- coloured LEDs. In this way equipment that is dif cult to access or far away can be conveniently and easily set and controlled. Independently of the existing WiFi environment, Siros L can set up its own network.

One more advantage: the app controls the functions of up to 6 units with absolute clarity and full individual control. But even without the app, Siros L is still simple and intuitive to operate. With the single rotary controller, the “Twist Function” lets you set the output very quickly over several f-stops or very precisely in 1/10 f-stop steps.
By pressing on the same knob you have access to the menu and to all the additional functions. There’s no simpler way. 

Siros L features Broncolor HS for syncing at shutter speeds up to 1/8,000s. Broncolor HS requires an RFS2.2 transmitter, available for Canon, Nikon, and Sony cameras. Existing Siros owners should ensure that their lights have the latest user-upgradable firmware, available online at

Download product brochure

What's in the box


- 2 × Siros 400 L (with broncolor HS)
- 1 × Battery charger
- 2 Lithium-ion batteries
- 1 × Umbrella silver/black Ø 85 cm
- 1 × Softbox 60 × 60 (cm) incl. adapter ring
- 1 × Sync cable 5 m
- 1 × Outdoor trolley backpack


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