broncolor Siros 400 L Outdoor Kit 2 w/RFS Transmitter (Canon)

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SKU: 31.750.XX-36.160.00
Categories: Studio To-Go Kits, Monoheads, Battery flash lighting


This Siros 400 L is the most powerful battery-operated monolight to date. It outshines other lighting solutions with its cable-free, compact design that excels in speed and performance.

It packs a punch of broncolor lighting power, capable of delivering more than 440 flashes from its single lithium-ion battery. Thanks to its low power consumption, this Siros L's 25 Watt LED modelling light, can shine brightly with a colour temperature of 3000 K, matching the modelling light of a mains-operated Siros S. This Siros L hosts an exposed flash tube allowing superior functionality of open reflectors, Softboxes, Paras and other parabolic light shapers. The power of this lighting system is more than obvious, with its output of up to 400 J, dominating light control. It's output ranges from high, outshining daylight, to low, delivering good results even for wide apertures. It hosts a microprocessor that determines the fastest flash speed for a set energy. Thanks to this Siros L, you'll be able to fully utilize any aperture.

This Siros L carries the same Enhanced Colour Temperature Control (ECTC) as the Scoro and Move power packs. The ECTC controls flash curve, allows high-speed flashes and ensures consistent colour temperature independent of setting adjustments. In Speed Mode, this Siros L reduces ECTC processing to shoot out flashes as fast as it can. Achieving lightning speed, this Siros L blasts light at above 50% intensity for 1/19000s (1/9000s above 10% intensity), while requiring a mere 0.03s rest between flashes.

The design of this Siros L compliments its size and weight perfectly. It has a single-piece aluminium exterior and a carrying handle that doubles as a floor stand. It also integrates an umbrella mount alongside the stand adapter, allowing full focus range with an umbrella. With consistent colour, high-speed flash capabilities and versatile control, this Siros L matches the light quality of most power packs and works exceptionally well with them. This Siros 400 L will fit right in with the rest of the broncolor family - sharing compatibility with the many light shaper accessories, including the two newly developed reflectors, specifically designed for the Siros.

All Siros L's power is contained within its single lithium-ion battery. Only a few centimetres in size and weighing a mere 0.6kg, the battery will allow this Siros 400 L to produce up to 440 full-power flashes ... 1700 flashes at an output of 2 f-stops less. Three LEDs indicate battery life. Once discharged, the battery can be charged and ready to go again in only 70 minutes. Implementing the latest advances in lithium-ion technology, this battery offers the shortest charge time for its resulting power. Built to follow the Siros L into the toughest shoots, it will survive temperatures down to -10 degrees Celsius and up to a scorching 60 degrees Celsius. The Siros L is designed in such a way that the battery can be efficiently removed and inserted, using only one hand.

This Siros L is a battery-powered compact powerhouse, carrying the legacy of the Siros S, Siros studio lights and 50 years of the best lighting systems in world. Compact, battery-powered, bright and durable, this Siros L is the most versatile lighting solution ... the only lighting solution you should consider. Order yours now.

This Siros 400 L Outdoor Kit 2 offers two Siros 400 L units with everything you need to start shooting right off the bat. With two units as well as light shapers, this is a complete kit, designed for challenging shoots.

Thanks to the latest software update, this Siros L features HS functionality and will keep up with your camera's very fast exposures. You'll be able to add controllable light (to fill in or set your accents) to an intentionally underexposed scene even if it's captured at 1/8000s through a wide aperture.

This Siros L can be easily controlled via the on-board turn-dial, wirelessly via the bronControl app or with the included RFS 2.2 Transmitter. With its own independent network, wireless control of this Siros L is possible anywhere. Manual control is just as simple, as the ergonomic dial allows for quick adjustments between 9 f-stops or even slow, precise 1/10 f-stop adjustments. The dial doubles as a button and can be pressed to switch between menu options.

The bronControl App is free to download for your phone and your desktop.

bronControl Update (published: 2 August 2017)


Siros L - Battery Powered Studio Quality


This kit includes the broncolor RFS 2.2 Transceiver so you can remotely trigger RFS 2 integrated units, such as the Move and this Siros L. Boasting HS (Hyper Sync) functionality, this remote transceiver allows these broncolor lights to keep up with faster shutter speeds - up to 1/8000s. It can even be used as a receiver for broncolor units that are without integrated RFS 2. It requires very little power but is able to link with up to 99 studio addresses - allowing you to switch between up to 99 different groups of lights. Designed for passionate, professional shooters, this compact device can communicate over a distance of up to 30m (98ft) indoors and up to 50m (164ft) outdoors. Add this broncolor RFS 2.2 Transceiver (Transmitter kit) to your kit today and gain the wireless lighting control you need.

*Update for Siros L to use HS

*To Update your Move to HS please contact us on: +27 21 462 6933


broncolor RFS 2.2 transceiver


RFS 2.2 and HS at Photokina 2016


RFS - Where to start...


RFS - Basic Set up


RFS - HS Controls


RFS - Custom Controls

broncolor Siros 400 L Outdoor Kit 2

Flash energy

400 J

f-stop at 2m distance, 100 ISO


with reflector L40

22 5/10

with reflector P70

32 5/10

Flash duration t 0.1(t 0.5)

with optimum colour temperature

min. energy

1/6’200 s (1/11’300 s)

max. energy

1/400 s (1/1’200 s)

Charging time (at 28.8V)


(for 100% of selected energy)



0.04 – 1.9 s


0.03 – 1.2 s

Number of fl ashes per battery charge

440 at full energy

Setting range for flash energy

up to 9 f-stops in 1/10th, or full f-stop steps


2 – 400 J

Colour temperature


max. energy/P70

5’500 K

Modelling light

25 W LED

Colour temperature

3’000 K

Flash release

Manual trigger button, photocell, sync cable, with integral broncolor RFS 2.1

Remote control

Using “bronControl” app for mobile devices or RFS 2.1 transmitter

Ready display

Visual and acoustic (can be switched off)

Other features

Sequences (flash series) up to 50 flashes

Integrated umbrella holder and umbrella reflector included in scope of delivery

USB connection for software updates

Speed mode for fastest flash duration

Dimensions (l × w × h)

32 × 13 × 18 cm (12.6 × 5.1 × 7.1")

Weight unit (without battery)

3.1 kg (6.8 lbs)

Dimensions (l × w × h) battery

8.5 × 11 × 5.5 cm (3.3 × 4.3 × 2.2")

Weight battery

0.6 kg (1.3 lbs)

Li-ion battery

28.8 V / 2.5 Ah / 72 Wh

Operating temperature range

−10° C bis +60° C


broncolor RFS 2.2 C Transmitter (Canon)

Studio address setting range

1 - 99

Lamp address setting range

1 – 40

Radio frequency channels

(automatically regulated)



2,4 GHz

Transmission time (transmitter to receiver)

0,425 ms

Exposure speed, focal-plane shutter in HS mode

Down to 1/8000s

Flash triggering by:

- Integrial hot shoe, middle contact

- Sync connection on side

Operational distance in open air

up to 50 m / 164 ft

Operational distance in a building

up to 30 m / 98 ft



Dimensions (l × w × h)

72 × 75 × 52 mm / 2.8 × 3.0 × 2.0"


100 g / 0.2 lbs (incl. batteries)

Releases per second


Power supply

2 AA batteries

Typical battery life span

approx. 8 – 12 months / 100‘000 flashes

Sync voltage

3 V

2x Siros 400 L

1x battery charger

2x lithium-ion batteries

1x umbrella silver/black Ø 85 cm

1x Softbox 60 × 60 (cm) incl. adapter ring

1x sync cable 5 m

1x Outdoor trolley backpack

1x RFS 2.2 transceiver (Canon)

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