Stelos is broncolor’s top model among battery-powered monolights – built for professional photographers who refuse to compromise. With 800 joules of flash energy, battery operation with simultaneous charging while in use, and the legendary broncolor light quality, you get full freedom both in the studio and on location. The unit is compact and intuitive: two buttons, a combined rotary/push control and a clear menu save valuable time on set. The bright LCD screen can be customised to your needs – from minimalist to a full overview.
- 800 J flash energy
- Battery operation with charging while in use
- Over 300 flashes at full power
- Variable flash colour temperature
- HSS (High Speed Sync)
- LED modelling light 2700–6500 K
- Battery with V-mount universal interface
V-Mount battery interface
Thanks to the universal V-mount interface, the Stelos works with a wide range of batteries from broncolor and third-party manufacturers. Charging is done easily via USB-C, either with a standard laptop charger or the supplied 140 W charger.
Adjustable colour temperature
A unique feature for monolights is the variable flash colour temperature — previously exclusive to broncolor’s high-end power packs. High Speed Sync (HSS) is of course included. The LED modelling light is powerful and adjustable between 2700–6500 K.
Large accessory range
The solid bayonet mount gives you access to broncolor’s extensive range of light shapers — even the largest can be used safely. Full compatibility with RFS 2 and 3 transmitters, the bronControl app via built-in WiFi and bronAPI for integration into custom applications make the Stelos a future-proof solution.
In larger setups identification is easy thanks to the multi-coloured Cognition Lights. The Stelos can also be tilted 90° up and down on a stand, all parameters can be controlled directly on the unit, and the size has been significantly reduced — broncolor has listened to photographers worldwide and given them creative freedom.
What's included
- Stelos 800 L
- Wide Angle Reflector Ø 120 mm
- Li-Ion battery 28 V V-Mount
- USB-C battery charger 140 W
- USB-C cable 3 m
- Protective cap
Specifications
- Flash energy: max 800 J
- f-stop at 2 m, ISO 100:
With Wide Angle umbrella reflector Ø120 mm: f/22.3
With P70 normal reflector: f/45.3
- Flash duration (t 0.1 / t 0.5):
Min. power: 1/9’200 s (1/16’000 s)
Max. power: 1/250 s (1/750 s)
- Speed Mode (t 0.1 / t 0.5):
Min. energy: 1/11’500 s (1/21’200 s)
Max. energy: 1/5’400 s (1/8’700 s)
- Shortest flash duration (t 0.1 / t 0.5):
Min. energy: 1/19’500 s (1/56’400 s)
Max. energy: 1/250 s (1/790 s)
- Recycle time (28 V): 0.008–2.5 s (depending on energy level)
- Number of flashes per full battery charge: >300 at full power
- Power range: 0.78–800 J over 10 f-stop intervals (adjustable in 1/10- or full-stop steps)
- Flash colour temperature: adjustable, -100 K to +800 K depending on selected energy
- Modelling light (LED): 49 W, 2700–6500 K
- Colour rendering (CRI): typically 98 at 100% power
- Triggering: manual release button, photocell, sync cable, built-in RFS receiver (RFS 2.1, 2.2, 3)
- Remote control: bronControl app or bronAPI
- Ready indicator: visual (modelling light) and acoustic (switchable)
- Extra functions:
Sequences up to 100 flashes
Alternating mode (via app)
Delay (up to 50 s)
High Speed Sync (HSS, level 5.4–11.0)
Speed Mode and t0.1 min for fastest flash times
Integrated umbrella holder
Freehand bayonet locking system
Daily and total flash counter
Customisable display
- Display: 2.8” LCD, high contrast and bright
- User interface: one rotary controller, two buttons; minimalist or “all at a glance”
- Cooling: temperature-controlled fan
- Dimensions:
Length incl. protective glass: 265 mm
Length incl. transport cap: 270 mm
Height: 165 mm
Width: 167 mm
- Weight:
Without battery: 2800 g
With battery: 3390 g
- Battery weight: 590 g
- Battery: Li-Ion, 88 Wh, 28.8 V, V-Mount
- Can be charged while in use via USB-C
- Recommended: Original broncolor battery (28 V V-Mount)
- Battery dimensions: 12.0 × 8.3 × 6.2 cm
- Stand mount: for 12 mm (3/8”) and 16 mm bolts
- WiFi: 2.4 GHz (Enterprise mode only)
- Firmware: update via WiFi
- Operating temperature range: -10 °C to +45 °C
- Storage temperature range: -10 °C to +50 °C
- Cognition Lights: 2 (left/right), 5 colours (blue, green, purple, yellow, turquoise)
- Compatibility: broncolor bayonet
- Menu languages: English, German, French, Korean, Japanese, Italian, Spanish, Simplified Chinese, Polish, Portuguese, Dutch
