The 800Ws Siros 800 L Battery-Powered Monolight from Broncolor is the latest in the Siros series of monolights. Powered by a lithium-ion battery, the flash head gets up to 220 full-power flashes on a 70-minute charge. The modeling light is a 25W LED to conserve battery power.

Speed is central to the design of the Siros L. Recycling is a lightning fast 0.03 to 2.7 seconds, while normal t0.5 flash duration is as short as 1/7400 sec. There's also a Speed Mode that bypasses the Siros L's Enhanced Color Temperature Control to prioritize short flash durations and fast recycle speeds. The result is a flash duration fast enough to freeze water droplets and other stop action effects. The Siros L has a 9-stop variable power range from full power all the way down to 2Ws. While at higher settings it's possible to out-flash the sun, lower settings allow use of even the widest apertures for your desired effect. All functions are available on the simple, intuitive panel via an ergonomic rotary controller, but you also have access to the menus and controls of up to 6 units using your tablet or smartphone and the free bronControl app.

Siros 800 L features Broncolor HS for syncing at shutter speeds up to 1/8000s. 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 www.bron.ch/sirosfirmwareupdate/.

2 x 800Ws Flash Heads    220 Full-Power Flashes    Li-Ion Battery    70-Minute Recharge    0.03 - 2.7 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

A single fully-charged lithium-ion battery stores enough energy for a Siros 800 L to flash more than 220 times, and it does that at maximum power.

In only 0.03 seconds, your Siros L is ready again. The flash duration can as fast as 1/4400 sec (t 0.1) or 1/7400 sec (t 0.5).

Flash duration and light output are the two decisive factors in light control. A microprocessor in Siros L will calculate the shortest flash duration for a given energy setting.

In Speed Mode, fast charging and short flash times have absolute priority. In this case, the calculation of constant color temperature (ECTC) is suppressed for quick results.

Very simple operation using the single rotary controller. Alternatively, you can use the advanced, intuitive app.

The high light output leaves no photographer standing in the dark. It can even challenge sunshine. And with a control range of 9 stops, you can still use wide-open apertures when needed.

With its low power consumption, the 25W LED module provides bright modeling light at a color temperature of 3200K. The light characteristics are absolutely comparable with the modeling light from a mains-operated Siros S.

Related Questions and Answers

Q: 1. Do these have TTL?

A: No, the Broncolor Siros 400 S WiFi/RFS 2.1 Monolight does not support TTL.

Q: 2. Would I need to change the modeling light in case of 230VAC/60Hz use?

A: If using the original modeling lamp (part number B-24.260.00) the modeling lamp does not need to be changed when using 230V AC. If a third-party lamp has been substituted, we recommend changing to the broncolor lamp before using higher voltages.

Q: 3. Does this strobe have TTL?

A: No, just High speed sync with Optional Transmitter

Q: 4. What mount does this strobe use?

A: This strobes utilizes the Broncolor Pulso mount, which will fit the current line up of Broncolor modifiers.

Q: 5. What is the weight of 800L? What boom arm. do you recommend for overheads?

A: The Broncolor Siros 800 L Battery-Powered Monolight BH #BRS800LWFR2B is about 8.1 lbs. Manfrotto Superboom would be suitable. B&H # MA025BS

Q: 6. Is this enough to light a 120 x 180 cm Softbox?

A: Yes. More than enough power to illuminate a 120x180 cm.

Q: 7. Is there HSS on the L800?

A: As of now, the Siros L is capable of HS through the use of certain third part transmitters.(PW Flex TT5 or Yonguo 622 for canon or nikon) As the Broncolor USA distributor we are hopeful that a more streamlined and simplified solution for HS will be made available in the near future.

Q: 8. What is the umbrella shaft size for this bead?

A: The Broncolor Siros 800 L Battery-Powered Monolight (B&H# BRS800LWFR2B) can take an 8mm diameter shaft umbrella. Please click on [Accessories] and then "Umbrellas " to see compatible options.

Q: 9. What is the umbrella shaft diameter; 7mm or 8mm?

A: The Broncolor Siros 800 S WiFi/RFS 2.1 Monolight BH #BRS800SWFRF uses the standard 8mm umbrella shaft size.

Q: 10. What remote would I need to make these lights work with a Leica S3?

A: The Broncolor RFS 2.1 Transceiver, B&H # BRRFS2T, would be a transmitter that may be used with the Leica S3 Medium Format DSLR Camera to wirelessly trigger the lights in the Broncolor Siros 800 S Pro 3-Light Kit.