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Providing a 400Ws output in a compact design, the Siros 400 S WiFi/RFS 2.1 Monolight from Broncolor is a reliable studio flash unit with Wi-Fi connectivity and a built-in RFS 2.1 receiver for wireless control and triggering. It has a 9-stop power range which is adjustable in 1/10 or full stop increments for great control over light output. The Siros S is also quite fast with a flash duration from 1/8000 - 1/1000second and a recycle time of 0.02-0.65 sec seconds depending on power settings. Additionally, the monolight has a halogen modeling light.
Built into the Siros S is a specialized Speed Mode that speeds up the charging time and flash duration to provide a fast sequence of exposures, up to 50 per second at the fastest setting. Also, the unit has a USB connection for software updates and is fan cooled for temperature control. An integrated reflector and mount are included for adding modifiers to the light.
- When the Siros is connected to a Wi-Fi network, each light can be identified by a different-color LED and can be easily controlled using the bronControl app for smartphones and tablets
- With the integrated Broncolor RFS 2.1 receiver, users can use the RFS 2.1 transmitter for remote control from the camera
- Cut-off technology uses a microprocessor to calculate the flash duration to an output, enabling sequences with up to 50 flashes per second
- Enhanced Color Temperature Control technology adapts flash voltage and duration in order to achieve a constant color temperature over the entire variation range
- Individual power distribution means the unit has controllers for each lamp in order to have greater control over the flash power range
- Speed mode reduces flash duration and charging time while reducing the maximum power in order to achieve a series of rapid exposures without overheating
- Single rotary control for flash power output setting, a slight turn provides 1/10 stops while a "Twist" function allows for whole stops
- Internal discharge when power is reduced
- Grip features double-wall plastic with a special coating for durability and comfort
- Aluminum stand adapter can be used with the handle to function as a built-in floor stand
- Standard sync port and built-in photocell are available for more elaborate triggering setups
- Black aluminum body construction
- Designed and developed in Switzerland
| Flash specifications | |
| Maximum Watt/Seconds | 400 Ws |
| Guide Number | With L40 Reflector: f/22 5/10 at 6.5' (2 m) and ISO 100. With P70 Reflector: f/32 5/10 at 6.5' (2 m) and ISO 100. |
| Control | 9 stops in 1/10 or full stop intervals 2-400 Ws |
| Recycle time | 230 V, 50 Hz: 0.02-0.65 sec |
| Flash Duration | Min. Energy: 1/6500 sec (t 0.1) / 1/13000 sec (t 0.5). Max. Energy: 1/1000 sec (t 0.1) / 1/2200 sec (t 0.5). With HS Flash Tube: 1/8000 sec |
| Color Temperature | Max. Energy with P70: 5750 K. With HS Flashtube and P70: 5500 K. |
| User Replaceable Flashtube | Yes |
| Auto Dump | Yes, when power is reduced |
| Changeable Reflector | Yes |
| Modeling Light | Max. 300 W / 120 V |
| Flash Ready Indicator | Visual and audible |
| Operating Voltage | Automatic adaptation to mains voltage 100-120 VAC, 50-60 Hz, 5.5 A or 200-240 VAC, 50-60 Hz, 3.5 A |
| Built-in Slave Cell | Yes |
| Fan Cooled | Yes |
| Dimensions | 35 x 22 x 24 cm |
| Weight | 3.2 Kg |
