Swiss lighting manufacturer bronocolor has announced the Siros 400 L and 800 L, a pair of battery-powered studio heads. Both models use an interchangeable lithium-ion cell that the company says is powerful enough to provide 440 full-power bursts from a single charge in the 400L, and 200 in the 800L. The cells recharge from flat in 75 minutes.

The new heads use the same modifiers as the current Siros range, and the 25-watt LED modeling light matches the color temperature of the bulbs used in the company’s mains-powered heads. The Siros 800 L has a maximum output of 800 joules, while the smaller 400 L head manages half of that. Both can produce flash durations as short as 1/19,000sec, and both can be controlled via Wi-Fi and the broncolor bronControl app for iOS and Android devices. To help the user identify which light is being adjusted from the app, it is possible to color code each head using the LEDs built into the body of the head’s housing.

These new Siros L heads can only be powered via their batteries, which fit inside the head rather than acting as external packs connected by a cable. Spare batteries will cost £215 plus tax. The heads will be available sooner than the press release states.

  • Siros 400 L Head - £1,515 + VAT
  • Siros 800 L Head - £1,755 + VAT
  • Siros 400 Outdoor Kit 2 (Two head kit) - £2,995 + VAT
  • Siros 800 Outdoor Kit 2 (Two head kit) - £3,495 + VAT

For more information visit the broncolor website.

Press release:

broncolor presents its new compact device – battery-powered studio quality

With the Siros 800 L, we have succeeded in producing one of the most powerful compact devices currently available on the market. The Siros 800 L is, like the somewhat smaller version, the Siros 400 L, a true genius in offering discerning photographers optimum lighting both indoors and outdoors.

Siros L – optimum lighting, compact and mobile
The Siros L is broncolor’s new battery-powered compact device, which provides ambitious professional photographers with the opportunity to enjoy the perfect lighting, be this in a mobile form in the studio, or for external shots – offering both very fast, and also long, flash durations.

The device has the most up-to-date lithium ion batteries – thanks to this, the device can achieve 440 flashes at full power; and the lower the power, even more flashes are available. The battery-pack can be used over a very wide temperature range from -10° to 60°C (14° to 140°F). Once its power has been used up, it can be completely recharged in only 75 minutes, allowing just two batteries to be switched and recharged during a shoot if there is a power supply available.

The Siros L uses the Swiss manufacturer’s ECTC technology, which has already been used in the well-known Scoro and Move generators – thus, Siros L has flash durations of up to 1/19'000 s (t0.5) and, of course, a guaranteed constant colour temperature over the entire control range.

All the Siros L’s functions are easily and remotely controlled by the “bronControl” app, which establishes its own WiFi network; this then allows the control of several devices by means of a smartphone or tablet. In order to ensure that the photographer knows which device he is currently addressing, the devices all have different LED colour codes – this ensures that the Siros L is easy to use, both indoors and outdoors.

Thanks to its compact size and battery-operation, the Siros L is absolutely ideal for outdoor use. It can, of course, also be used in the studio where it can be easily integrated into existing broncolor studio equipment.

The 25-watt LED modules offer a bright modelling light with a colour temperature of 3000 K, matching the colour temperature of the halogen modelling lamps of the Siros mains powered units.

In addition to the 800 J version for photographers who refuse to compromise in respect of power, there is the Siros 400 L version which is somewhat smaller and lighter and thus offers about 50% of the energy of its bigger brother.

The Siros L can be used with the entire broncolor light-shaper range. Many light-shapers, such as softboxes, open reflectors and especially Paras, are parabolic and can only guarantee an optimum light output and quality if the light source is placed as close as possible to the focal point in the interior of the reflector. This is why, with the Siros L, broncolor has deliberately opted for an external flash tube, providing perfect lighting.

The Siros L will be available in shops from 1st July 2016.
Would you like to know more? Please visit broncolor’s website at