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Broncolor Siros 800 L Battery-Powered Monolight

BH #BRS800LWFR2B • MFR #B-31.720.07
22 reviews
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Broncolor Siros 800 L Battery-Powered Monolight
Stand(s) Not Included
Key Features
  • 800Ws, 220 Full-Power Flashes
  • Li-Ion Battery, High-Speed Sync
  • 70-Minute Recharge
  • 0.03 - 2.7 sec Recycling
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.
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Broncolor 800 L Overview

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/.

Siros L is Battery-Powered
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.
Siros L is Fast
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).
Cut-Off Technology
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.
Speed Mode
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.
Siros L is Simple
Very simple operation using the single rotary controller. Alternatively, you can use the advanced, intuitive app.
Siros L is Powerful
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.
Siros L is LED
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.

Broncolor 800 L Specs

Key Specs
Item Type
1x Monolight
Includes Flash Tube
Yes
Included Light Modifier
1x Reflector
Included Storage Case
Yes
Power Range
4 to 800 Ws
 
Power Control
9-Stop Range in 1/10-Stop Increments
Recycle Time
0.03 to 2.7 Sec
TTL Metering
No
Modeling Light
25 W LED Built-In (3000K)
Wireless Remote Control Type
Radio/RF Receiver Built-In
Wi-Fi Built-In
Optical Receiver Built-In
Sync Speed
1/8000 Sec
Power Source
Battery (Included)
Inputs/Outputs
1x Barrel / Coax Female Flash Sync Input
1x Micro-USB Female Firmware Input
Battery
1x Rechargeable Lithium-Ion, 28.8 VDC, 2500 mAh (Included)
 • 220 Flashes at Maximum Brightness
 • 70-Minute Charge Time
Fixture Mounting
1x 5/8" Receiver
Weight
8.2 lb / 3.72 kg (Fixture without Battery)
9.3 lb / 4.22 kg (Fixture with Battery)
Light Fixture
Item Type
1x Monolight
Includes Flash Tube
Yes
Included Light Modifier
1x Reflector
Included Storage Case
Yes
Power Range
4 to 800 Ws
 
Power Control
9-Stop Range in 1/10-Stop Increments
Recycle Time
0.03 to 2.7 Sec
Color Temperature
5500K
Flash Ready Indicator
Audio & Visual
TTL Metering
No
Umbrella Mount
Yes
Front Accessory Mount
Broncolor
Replaceable Flash Tube
Yes (User Replaceable)
Modeling Light
Modeling Light
25 W LED Built-In (3000K)
Connectivity
Wireless
2.4 GHz Radio/RF
Wireless Remote Control Type
Radio/RF Receiver Built-In
Wi-Fi Built-In
Optical Receiver Built-In
Mobile App Compatible
Yes: Android & iOS
App Name: bronControl
Wireless Channels
99
Wireless Groups
4
Wireless Frequency
2.4 GHz
Flash Duration
t.1: 1/4400 to 1/250 Sec
t.5: 1/7400 to 1/700 Sec
Sync Speed
1/8000 Sec
Power & I/O
Power Source
Battery (Included)
Inputs/Outputs
1x Barrel / Coax Female Flash Sync Input
1x Micro-USB Female Firmware Input
Battery
1x Rechargeable Lithium-Ion, 28.8 VDC, 2500 mAh (Included)
 • 220 Flashes at Maximum Brightness
 • 70-Minute Charge Time
Battery Charging
1x AC to DC Adapter (Included)
Included Adapter / Cable
1x USA Type-A/B to Barrel / Coax Male AC to DC Adapter
Auto Dump
Yes
Mounting
Fixture Mounting
1x 5/8" Receiver
General
Display
No
Operating Conditions
14 to 140°F / -10 to 60°C 
Dimensions
14 x 7.1 x 5.1" / 36 x 18 x 13 cm
Weight
8.2 lb / 3.72 kg (Fixture without Battery)
9.3 lb / 4.22 kg (Fixture with Battery)
Packaging Info
Package Weight
17 lb
Box Dimensions (LxWxH)
22.5 x 11.5 x 10.3"

Broncolor 800 L Reviews

Great Monolight

By Rene
Rated 5 out of 5
Date: 2022-07-15

This is a great light and has more than enough power. I just wish it was smaller and that it came with a seconded battery.

Power and portability that is hard to beat.

By Glen
Rated 4 out of 5
Date: 2020-11-12

Firstly, I am beginning my review with a confession: I purchased my two Siros 800 L monolights used from B&H, not new. Second, I'd like to base much of my review as a comparison between these and the Profoto B1 500 as I have used both and I would say these two models lead the market on battery powered strobe monolights. The most obvious advantage of the Siros is the 800w output over 500w from the B1. If you need the extra output there's really no substitute, this is one of the main reasons I chose the Siros over the B1. The other reason why I bought these was because they already use a frosted glass dome over the flash tube. One of the largest drawbacks of the B1 for me is that to get the best performance with certain light modifiers you need to spend an extra $200 on the Profoto frosted dome per light, which then makes them more expensive than the Siros 800L. But it doesn't stop there either, because when you add the frosted dome on the B1 then you also need to buy a different protective cap that will fit over the dome, and that's another $30 per light. It's also worth mentioning that while both systems batteries are expensive the B1 batteries cost slightly more but are only 44Wh versus the 72Wh of the Siros L batteries. Yet somehow the Siros L batteries can charge just as fast, if not faster, on a 2.5Ah charger (included) than the B1 batteries do on a 4.5Ah charger (not included, cost an extra $235!). So the Siros 800L gives you more output for more triggers and your spent batteries will charge faster, and in the end it will cost you less. There is one advantage I will give the Profoto B1, and that is build quality. When you handle one, you can feel how solidly built it is, all the buttons and knobs are stiff but supple. When you slide in a fresh battery in the B1 it locks in easily and confidently, whereas with the Siros L you practically have to slam the battery in for it to lock. I wouldn't say the build quality on the Siros is bad, but they feel like they wouldn't stand up to harsh use as well as the B1. My one other complaint with my Siros is the slots for umbrellas suck, they just use a bent piece of plate steel as a spring but its way too tight and sometimes I have to use all my grip strength to rip out the rod of the umbrella.

See any errors on this page?

question

It is possible to use connected to the grid?
Asked by: Anonymous
It is possible to use grids with this monolight with the help of the Broncolor Standard Reflector for Siros and Siros L Monolights B&H # BRRL40 and the grid set for it which is the Broncolor Honeycomb 3 Grid Set for L40 Reflector B&H # BRGS3L40. Please see the images below for reference.
Answered by: Kirk R.
Date published: 2022-12-12

where do I connect the pocket wizard to the ...

where do I connect the pocket wizard to the Siros?
Asked by: Toan
If you look at the "Guides & Manuals" link under the "In The Box" section under the Overview tab on our website for the Broncolor Siros L 800Ws Battery-Powered Monolight, B&H # BRS800LWFR2B, page 3 shows the location of the sync socket, labeled as #6 on the image. It is located on the bottom of the unit next to the mini-USB port and across from the Mains power switch. The monolight has a 1/8" (3.5 mm) miniphone sync terminal. You would connect the PocketWizard MM1 Miniphone to Miniphone Cable -12", B&H # WICMM16, from the sync terminal on the flash to the sync terminal on your PocketWizard transceiver/receiver.
Answered by: Manzell L
Date published: 2018-11-18

What is the umbrella shaft size for this bead?

What is the umbrella shaft size for this bead?
Asked by: Anonymous
8mm
Answered by: broncolor USA Team
Date published: 2021-09-20

What is the weight of 800L? What boom arm. do you ...

What is the weight of 800L? What boom arm. do you recommend for overheads?
Asked by: Steve
The Broncolor Siros 800 L Battery-Powered Monolight BH #BRS800LWFR2B is about 8.1 lbs. Manfrotto Superboom would be suitable. B&H # MA025BS
Answered by: Reuben K
Date published: 2023-05-01

question

Can I use it with Sony A99 or Sony A7R II?
Asked by: Gustavo
You can use the Broncolor RFS 2.1 Transceiver B&H # BRRFS2T with your Sony A99 and A7R II to trigger the Siros L 800. Please see the image below.
Answered by: Kirk R.
Date published: 2018-08-27

I have five of these siros 800 L lights which are ...

I have five of these siros 800 L lights which are fantastic and 10 batteries. I am wondering if there is some sort of charging dock that can charge multiple batteries at the same time. At the moment I have 5 seperate chargers which is a lot of cords to plug in.
Asked by: Dan
Thanks for your question and support of broncolor! Unfortunately at this time a multi-dock solution is not available but we will certainly share it with our product planners.
Answered by: dan@broncolor
Date published: 2020-03-05

Does this strobe have TTL?

Does this strobe have TTL?
Asked by: johnny
No, just High speed sync with Optional Transmitter
Answered by: Joseph
Date published: 2021-01-17

question

Are theses unit RFS? If so is it 2.1 or 2.2? Will they work with Pocket Wizards?
Asked by: Fabio
The monolights in this kit utilize the Broncolor RFS 2.1 receiver which cannot be triggered with a Pocket Wizard unit. However, you can connect a Pocket Wizard unit to the monolight and trigger them using another Pocket Wizard unit on camera.
Answered by: Kirk R.
Date published: 2019-06-30
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