To Next PageTo Next Page
Need help?Do you have a question about the Godox WITSTRO AD400Pro and is the answer not in the manual?
Essential safety measures to prevent injury or damage during product use.
Overview of the flash body, controls, and LCD panel for user understanding.
Information on included and optional accessories, and their mounting procedures.
Details on battery features, charging, and power-saving configurations.
Using automatic TTL mode with exposure compensation and high-speed sync.
Operating in manual power output, flash duration, and multi-flash modes.
Setting up wireless communication channels, groups, and IDs for reliable triggering.
Adjusting advanced settings via C.Fn menu and operating the modeling lamp.
Understanding built-in protection mechanisms and interpreting error codes.
Resolving common operational issues and updating the device software.
Reference specifications, operational limits, and regulatory compliance information.
The Godox WITSTRO AD400Pro is an all-in-one outdoor flash unit designed for professional photographers and enthusiasts seeking studio-quality lighting in various environments. This powerful and portable flash offers a comprehensive set of features for both on-camera and off-camera use, ensuring versatility and ease of operation in complex lighting conditions.
The AD400Pro serves as a robust and adaptable lighting solution, capable of delivering strong power with a large-capacity lithium battery pack. Its primary function is to provide precise and consistent flash exposure, whether in TTL autoflash, manual, or stroboscopic modes. The built-in Godox 2.4G wireless X system allows for seamless integration with other Godox TTL camera flashes, outdoor flashes, and studio flashes, making it compatible with Canon, Nikon, Sony, FUJIFILM, Olympus, and Panasonic TTL autoflash systems.
In TTL autoflash mode, the flash works in conjunction with the camera to calculate the correct exposure for the subject and background, simplifying complex lighting scenarios. The Flash Exposure Compensation (FEC) function allows for fine-tuning of exposure from -3 to +3 stops in 1/3rd stop increments, which is particularly useful for minor adjustments based on the shooting environment.
For manual control, the flash output is adjustable from 1/1 full power down to 1/256th power in 0.1 stop increments, providing precise control over light intensity. The inclusion of S1 and S2 optical secondary unit settings in manual mode enables the flash to function as an optical slave, firing synchronously with a main flash or ignoring pre-flashes from cameras with pre-flash functions, thereby facilitating multiple lighting effects.
The Multi/Stroboscopic flash mode allows for a rapid series of flashes, ideal for capturing multiple images of a moving subject in a single photograph. Users can set the firing frequency (Hz), the number of flashes, and the flash output to achieve creative motion blur effects.
High-Speed Sync (HSS) or FP flash enables the flash to synchronize with all camera shutter speeds, which is beneficial for using aperture priority in fill-flash portraits or when needing to overpower ambient light.
The AD400Pro also features a 30W LED modeling lamp with two continuous lighting modes: Percentage and PROP. The Percentage mode allows for brightness adjustment from 10% to 100%, while the PROP mode adjusts the modeling lamp's power in proportion to the flash's power output. This feature aids in visualizing the light's effect before shooting.
For wireless control, the flash can be set as a slave unit within the Godox 2.4G wireless X system, allowing it to be triggered and its power level adjusted remotely by XPro and X1 series flash triggers. It supports communication channels from 1 to 32 and group IDs from A to E, minimizing signal interference in busy environments. The wireless ID setting further enhances control and prevents interference.
The AD400Pro is designed for user-friendly operation with a clear dot-matrix LCD panel that displays settings and status conveniently. The physical controls, including mode selection, group/channel buttons, set dial, and test button, are intuitively placed for quick adjustments.
The flash unit boasts a quick recycle time of 0.01-1s, ensuring minimal downtime between shots and allowing photographers to capture fast-paced action without missing critical moments. Its stable color temperature mode maintains color consistency within ±75K across the entire power range, crucial for professional results. This mode can be activated via custom functions, and a discharge is required after power output adjustments to ensure color stability.
The device's physical design includes a handle for easy adjustment of the flash's direction, which can rotate up to 180 degrees. The mounting bracket is detachable, offering flexibility in setup and portability. The flash tube is also detachable, which is recommended for safe transportation to prevent damage.
The AD400Pro supports various sync triggering modes through its 3.5mm sync cord jack, allowing for versatile integration with different camera systems and triggers.
Power management is efficient, with a long-press power switch for on/off control and an auto power-off function that can be set from 30 to 120 minutes via custom functions (C.Fn-STANDBY) to conserve battery life. The battery level is clearly indicated on the LCD panel, with visual cues for remaining charge and warnings for low battery, prompting timely recharges.
The flash is equipped with a new Godox-mount and includes a Bowens-mount adapter ring, allowing for compatibility with a wide range of accessories from different brands like Broncolor, Prophoto, and Elinchrom by simply replacing the adapter ring. This modular design enhances the flash's adaptability to various lighting modifiers such as softboxes, beauty dishes, and snoots.
The AD400Pro incorporates several protection functions to ensure the device's longevity and user safety. An over-temperature protection system is in place to prevent overheating and deterioration of the flash head. If the flash is fired too many times in fast succession, especially at full power, the system will activate, increasing recycling time and displaying a warning icon on the LCD. Users are advised to allow a rest time of at least 5 minutes after such instances.
The device's inner circuit is protected against overcharge, overdischarge, overcurrent, and short circuits, contributing to its reliable and safe operation. Error messages displayed on the LCD panel provide immediate feedback on potential issues, such as recycling system failures or high voltage on flash tube outlets, guiding users to restart the unit or seek professional maintenance.
For long-term storage, it is recommended to charge the lithium battery pack to approximately 60% capacity. If the battery has not been used for over three months, a full recharge is advised to maintain its health.
The flash unit supports firmware upgrades via its Type-C USB port, allowing users to keep the device updated with the latest features and improvements. Firmware updates are performed using the Godox G3 software, ensuring the flash remains current with technological advancements.
Regular maintenance includes keeping the product dry and avoiding sudden impacts. The flash tube may become warm during use, which is normal, but continuous flashes should be avoided if unnecessary. Any abnormal operation should prompt immediate shutdown, and repairs should only be performed by authorized maintenance centers using original accessories to ensure proper functioning and to avoid voiding the one-year warranty.
General| Power | 400Ws |
|---|---|
| Flash Duration | 1/240 to 1/12820 sec |
| Color Temperature | 5600K ± 200K |
| Wireless Range | 100m |
| Battery Capacity | 21.6V / 2600mAh |
| Full Power Flashes | Approx. 390 |
| FEC / FEB | ±3 stops in 1/3 stop increments |
| Channels | 32 |
| Groups | 5 (A, B, C, D, E) |
| PC Sync Port | Yes |
| Mount Type | Bowens Mount |
| Guide Number | 72 m (ISO 100) |
| Power Range | 9 stops: 1/256 to 1/1 |
| Modeling Lamp | 30W LED |
| Power Source | Lithium-Ion Battery |
| Sync Mode | High-Speed Sync up to 1/8000 sec |
| Wireless Control | Built-in 2.4 GHz Wireless X System |
| Weight | 2.1 kg (flash tube & reflector not included) |
| Modeling Lamp Brightness | Adjustable |
| Compatible Triggers | Godox X1, XPro |
| USB Port | Yes, for firmware updates |
| AC Power Option | Yes (optional adapter) |
