The 800Ws Broncolor Siros 800 L Battery Monolightis 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/.

800Ws, 220 Full-Power Flashes    Li-Ion Battery, High-Speed Sync    70-Minute Recharge    0.03 - 2.7 sec Recycling    Speed Mode Flash Duration: 1/7400 sec    High Speed Mode w/ Optional Transmitter    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. I have a Fujifilm GFX. No issue with camera sync speed with a regular trigger. However, I want to use the HSS feature. Godox released a new trigger for Fujifilm: https://a href= http://www.bhphotovideo.com/c/product/1348942-REG/godox_x1t_f_remote_controler_transmter_from.html target= _blank www.bhphotovideo.com/c/product/1348942-REG/godox_x1t_f_remote_controler_transmter_from.html/a Can someone from Broncolor confirm that they are compatible?

A: HiDon't think it will work. My buddy has a Godox trigger and we tried to make it work but no luck. Though broncolor gets them from the same manufacturer , they are not compatible with each other :/.

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 it support high sync?

A: No, the Broncolor Siros L 400Ws Battery-Powered Monolight does not support high speed sync.

Q: 4. Can this light be used outdoor? Or only indoor?

A: Siros S is AC only. For a battery version the Siros L is a option.

Q: 5. I Have Grafit powerpack and various J and unilght heads as well as boxlights and pulsospot4. I prefer monobloc heads. Looks like my studio needs will be met nicely by the Siros L 800’s. My question is do these integrate well with the standard powerpack systems of Broncolor like my Grafit and heads? Ie: color temp and output the same? Fast flash duration settings like 1/7000sec t.1? Modifiers all fit same bayonet mounts? iOS app control, is there a way to include my older pack system?

A: The Broncolor Siros 800 S would have a flash duration of 1/4000 at t.1 and would accept all Pulso/Primo type modifiers. While they can be triggered optically from your current Broncolor pack/head system, you cannot trigger your pack/head system using the bronCONTROL App.

Q: 6. According to the Specs, this monolight's power ranges from 4 to 800 Ws. I would like to buy the 2-light kit for use in a small home studio (600 sq ft) for product photography. I would like powerful lights that can be dialed down to low light output when needed. Can this powerful monolight also be used for low light photography? Thanks in advance.

A: While the power range could work for shooting products, it all depends on the size of your space and the type of products you will be shooting. One thing to keep in mind is that any modifiers used over the monolights can further reduce the output.

Q: 7. can you synchronize with other transmitters to make it work together with other flashes?

A: To sync with other transmitter systems, Siros 800S features a standard 3.5mm sync input on the bottom of the unit. Using the appropriate receiver unit and adapter cable, this would allow for the Siros to work with other systems.

Q: 8. Hello all, Does any one know what is needed to achieve successful HSS shooting using a Pentax 645Z with this monolight? Aside from swapping in a longer burning bulb, are there any other required firmware/hardware considerations? Anyone having real world on-location experience using hss this light, please tell what you know.I looked at the Profoto B1 option (lower power; no hss provision for Pentax 645), but prefer the Bron., even if I have to bring my own power on location. Thanks everyone in advance!

A: At this time there is no system that allows the Pentax 645Z work in HSS.

Q: 9. So the 2 kit and 3 kits does not come with any trigger?

A: Correct, kits are sold without RFS2.1 / 2.2 transmitters, giving you the option to select either a universal or camera platform specific version.

Q: 10. Are those monolights compatible with Pocket Wizards Plus II transmitters?

A: Yes, to synchronize a Pocket Wizard unit with the Siros, simply connect a receiving unit to the Siros' sync port via a 3.5mm to 3.5mm cable from the Wizard to the Siros. There is no built-in receiver for the Pocket Wizard products though.