1. Introduction
The Elinchrom ONE Off-Camera Flash Dual Kit (EL20931.2) provides a portable and powerful lighting solution for photographers. This manual details the features, setup, operation, and maintenance of your Elinchrom ONE units to ensure optimal performance and longevity.
The Elinchrom ONE is designed for versatility, offering integrated Li-Ion batteries, USB-C charging, and compatibility with various light modifiers. Its compact size and robust build make it suitable for both studio and on-location photography.
2. What's in the Box
The Elinchrom ONE Off-Camera Flash Dual Kit includes the following components:
- 2 x Elinchrom ONE Flash Head
- 2 x OCF Adapter
- 2 x OCF Diffusion Dome
- 2 x 65W USB Type-C Wall Charger
- 2 x 5.9' USB-C Cable
- 1 x Elinchrom ONE 2-light backpack
Image 2.1: Contents of the Elinchrom ONE Dual Kit, including two flash heads, chargers, cables, diffusion domes, OCF adapters, and the carrying backpack.
Image 2.2: The Elinchrom ONE Dual Kit showing the two flash heads, OCF adapters, and the included backpack for transport.
3. Setup
3.1 Initial Charging
- Connect the provided USB Type-C cable to the Elinchrom ONE flash unit.
- Plug the USB Type-C wall charger into a power outlet.
- Allow the unit to charge fully before first use. Refer to the "Battery & Charging" section for charging times.
3.2 Mounting the Flash Unit
- The Elinchrom ONE features a standard 5/8" receiver with dual-axis mounting. Attach the flash unit to a compatible light stand.
- Secure the flash unit firmly using the locking mechanism on the stand mount.
3.3 Attaching Light Modifiers
The Elinchrom ONE is natively compatible with Elinchrom OCF and Profoto OCF light shapers. An Elinchrom adapter is included for broader compatibility.
- To attach an OCF modifier, align it with the flash head and secure it according to the modifier's instructions.
- For Elinchrom modifiers, use the included OCF adapter.
- The unit also features an umbrella fitting (7 to 8 mm) on the tilt head for umbrellas.
Image 3.1: Two Elinchrom ONE flash units shown mounted on light stands, ready for use with or without modifiers.
4. Operating Instructions
4.1 Power On/Off
Locate the power button on the unit. Press and hold to power on or off.
4.2 Flash Modes
The Elinchrom ONE supports the following flash modes:
- Manual Mode: Allows precise control over flash power output.
- TTL (Through-The-Lens) Mode: Automatically adjusts flash output for correct exposure. Requires a Skyport Transmitter Pro.
- HSS (High-Speed Sync) Mode: Enables flash synchronization at shutter speeds faster than the camera's native sync speed. Requires a Skyport Transmitter Pro.
4.3 Power Adjustment
The power range is 5 F-stops, from 7 to 131 Ws. Adjust power using the controls on the unit's interface.
4.4 Modeling Lamp
The Elinchrom ONE features a 20W Bicolor LED modeling lamp with a CRI of 95, providing 3000 Lumens (equivalent to 120W Halogen).
- Color Temperature: Presets from 2700 K to 6500 K are available.
- Run Time: Approximately 10 hours at minimum power, and 90 minutes at maximum power.
4.5 Triggering
The unit has a built-in Skyport radio receiver with 20 channels and 4 groups.
- Radio Range: Up to 60m indoors, up to 200m outdoors.
- Bluetooth: Version 4.2 is built-in, compatible with Elinchrom Studio Software for Windows, Mac, and iOS devices.
5. Battery and Charging
The Elinchrom ONE is equipped with a built-in 41.04 Wh Li-Ion battery.
5.1 Battery Capacity
- With LED lamp OFF: 9700 flashes (min power) / 725 flashes (max power).
- With LED lamp ON (100%): 3700 flashes (min power) / 525 flashes (max power).
5.2 Charging
Use the provided 65W USB-C wall charger for optimal charging.
- Fast Charge (unit ON): 60 minutes to 80%, 100 minutes to 100%.
- Slow Charge (unit OFF): 80 minutes to 80%, 135 minutes to 100%.
- Active Charging: The unit can be used while charging, ensuring uninterrupted workflow.
6. Maintenance
6.1 Cleaning
Wipe the exterior of the flash unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
6.2 Flash Tube Replacement
The flash tube is user-replaceable. The SKU for a replacement flash tube is EL24091. Refer to the official Elinchrom service manual or contact customer support for detailed replacement instructions.
6.3 Cooling System
The unit features a fan-cooled system with Smart Proactive Cooling to prevent overheating. Ensure ventilation openings are not obstructed during operation.
7. Troubleshooting
If you encounter issues with your Elinchrom ONE, refer to the following common solutions:
- Unit not powering on: Ensure the battery is charged. Connect to the USB-C charger and attempt to power on.
- Flash not firing: Check the connection to the trigger (Skyport Transmitter Pro). Verify flash mode settings (Manual, TTL, HSS). Ensure the unit is not in sleep mode or overheated.
- Inconsistent flash output: Check battery level. Ensure proper triggering and consistent camera settings.
- Overheating warning: Allow the unit to cool down. Ensure adequate ventilation. The Smart Proactive Cooling system will manage temperature, but extreme conditions may require a pause.
For further assistance, contact Elinchrom customer support or visit their official website.
8. Specifications
| Category | Specification |
|---|---|
| Energy | 131 Ws |
| F-stop (1m, 100 ISO, HP Reflector) | 45.2 |
| F-stop (1m, 100 ISO, OCF Diffusion Dome) | 11.9 |
| Power Range | 5 F-Stops / 7 to 131 Ws |
| Flash Duration t0.1 (Normal Mode) | 1/1530s – 1/155s |
| Flash Duration t0.1 (Action Mode) | 1/7000s – 1/625s |
| Recycling Time | 0.06s / 0.9s (Min/Max) |
| Flash Modes | Manual / TTL / HSS (TTL and HSS Require Skyport Transmitter Pro) |
| Flash Color Temp. (Max Power) | 5900 K (Action) / 5600 K (HSS) |
| Flash Color Temp. Stability | ±150 K over power range |
| Power Stability | ±0.5% |
| Cooling | Fan Cooled, Smart Proactive Cooling |
| User Replaceable Flash Tube | Yes, SKU: EL24091 |
| Stand Mount | Standard 5/8" Receiver with Dual Axis Mounting |
| Modifier Mount | Elinchrom OCF, Profoto OCF, Elinchrom (via included adapter) |
| Umbrella Fitting | 7 to 8 mm on Tilt Head |
| Battery Type | Built-in 41.04 Wh Li-Ion |
| Battery Capacity (LED OFF, Min/Max Power) | 9700 / 725 flashes |
| Battery Capacity (LED ON 100%, Min/Max Power) | 3700 / 525 flashes |
| Charging Time (65W USB-C, Unit ON) | 60m (80%) – 100m (100%) |
| Charging Time (65W USB-C, Unit OFF) | 80m (80%) – 135m (100%) |
| Modeling Lamp Type | 20W Bicolor LED CRI 95, 3000 Lumens (120W Halogen equivalent) |
| Modeling Lamp Color Temperature | Presets from 2700 K to 6500 K |
| Modeling Lamp Run Time (Min/Max Power) | 10 hours / 90 minutes |
| Radio Receiver | Built-in Skyport with 20 Channels and 4 Groups |
| Radio Range | Indoor: up to 60 m / Outdoor: up to 200 m |
| Bluetooth | Version 4.2 Built-in, compatible with Elinchrom Studio Software (Win, Mac, iOS) |
| Product Dimensions | 13.78 x 20.08 x 9.84 inches |
| Item Weight | 11.86 pounds |
| Model Number | 20931.2 |
| Manufacturer | Elinchrom |
9. Warranty and Support
9.1 Warranty Information
Elinchrom products are covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official Elinchrom website for detailed warranty terms and conditions specific to your region.
9.2 Customer Support
For technical support, service, or inquiries regarding your Elinchrom ONE Off-Camera Flash Dual Kit, please contact Elinchrom customer support. You can find contact information and additional resources on the official Elinchrom website: www.elinchrom.com.
Always provide your product model number (EL20931.2) and serial number when contacting support for faster service.
