A monolight combines power supply and lamp unit in one housing. There is no need for a lamp cable, making the device very handy and convenient. A battery-powered monolight allows you to work completely wireless. In order to keep size and weight to a minimum, monolights are limited when it comes to flash power. Each monolight features its own controls and works independently of other monolights. The whole system is not down in case of a technical issue.

A power pack usually stands on the ground, therefore size and weight are not as critical as compared to monolights. Therefore, they offer substantially more flash power. Several lamp heads are connected to and controlled by one power pack. In case of a failure the whole system may be temporarily down. The (separate) lamp heads are much smaller and lighter than monolights.

440 flashes (Siros 400 L) respectively 220 flashes (Siros 800 L)

Yes, both Siros 400 L and Siros 800 L support this function (flash power level 4 to 10 only).

Please note: Among the mains powered devices (Siros S), only the 800 S does offer the HS function.

- broncolor RFS 2.1 system:

• RFS 2.1 Transceiver (Transmitter kit) | item number 36.133.00

- broncolor RFS 2.2 system:

• RFS 2.2 C Transmitter (Canon) | item number 36.160.00
• RFS 2.2 F Transmitter (Fujifilm) | item number 36.163.00
• RFS 2.2 N Transmitter (Nikon) | item number 36.161.00
• RFS 2.2 S Transmitter (Sony) | item number 36.162.00

It comes with a 28.8 V / 2.5 Ah / 72 Wh Li-Ion battery with integrated battery status (item number: 36.155.00).

Activating the broncolor HS function has a small influence on colour temperature.
However, other light sources such as daylight or ambient light usually have a stronger impact on colour temperature.
Hence, the broncolor HS function’s influence on colour temperature is alleviated in sunny conditions.
HS is meant to be used in a bright outdoor environment.

The battery indicator can have several states during operation, charging, or if an error occurs. It can typically be green or red, and have the possibility to blink. Each combination has a specific meaning.

To understand it fully, please read the following document: Siros L - battery indicator

Without HS, the minimal flash duration cannot be shorter than the fastest shutter speed of the camera (X-sync).
The broncolor HS function provides a way to circumvent the restriction imposed by the X-Sync time:
1) The flash fires before even one pixel of the image sensor has been uncovered
2) The first shutter curtain starts to open
3) The second shutter curtain starts to close (think of it as a scanning procedure)
4) The flash continues to burn (like a continuous light) and only stops when the scanning procedure is complete. For this reason we need the longest possible flash duration. The result is a great feature; now you can use a large aperture to provide an out-of-focus background, or simply freeze super-fast motions.

While working in HS mode you are only able to use flash power level 4 to 10 with Siros L.
While working in HS mode you are only able to use flash power level 6 to 10 with Move 1200L.

In general – under the same lighting conditions (i.e. ambient light) – the broncolor HS function does not impact battery life.

RFS 2.2 is available in three versions, for Canon, Nikon and Sony, always optimized for its operation.
The use with other camera systems is not recommended.
The RFS 2.1 transmitter is a more universal device, hence able to work with many camera makes other than Canon, Nikon or Sony.
Please note that with the RFS 2.1 the broncolor HS function is not supported.

Under studio (“interior”) conditions, a certain degree of brightness gradation (from top to bottom) may occur. This effect varies depending on the camera model.
Outdoors in bright sunlight – the ideal environment for the broncolor HS function – the mentioned brightness gradation is neglectable.

25 W LED, 3000 K

AFTER RECEIPT, IT IS ESSENTIAL THAT YOU FULLY CHARGE THE LITHIUM-ION BATTERIES IMMEDIATELY AND STORE THEM IN THIS WAY.

They must be recharged after a maximum of 5 months. If the batteries are not charged, they can fall into a deep discharge state and then usually cannot be recharged, i.e. they are defective and can no longer be repaired. In such cases, no guarantee or goodwill can be given.