1. Product Overview
The Godox AD400Pro is an all-in-one outdoor flash strobe light, offering 400W of power with 2.4G TTL capabilities. It features a fast recycle time of 0.01-1s and 1/8000s High-Speed Sync (HSS), making it suitable for studio and portable use. This speedlite includes a battery and is compatible with Canon, Sony, Nikon, Fuji, Olympus, and Panasonic cameras.
Image 1.1: The Godox AD400Pro flash unit shown with its standard reflector and a carrying case, battery, charger, and cleaning cloth.
2. Package Contents
- 1 x AD400Pro Flash Body
- 1 x Bowens mount adapter ring
- 1 x Flash Tube
- 1 x Lithium Battery Pack
- 1 x Battery charger
- 1 x Power cord
- 1 x Reflector
- 1 x Wrench
- 1 x Instruction manual
- 1 x CB-09 Carry Case
3. Setup
3.1 Battery Activation
To activate the battery after a long period of non-use (e.g., one month), it may enter hibernation mode. To reactivate, press the battery activation key several times until the battery indicator lights up, then recharge normally. The activation key is located next to the battery indicator.
Image 3.1: Steps for activating the battery. Press the activation key multiple times until the battery indicator lights are on.
3.2 Mounting Accessories
The AD400Pro flash body features a Godox mount for direct attachment of compatible accessories. A Bowens mount adapter ring is included, allowing compatibility with a wider range of Bowens mount modifiers such as softboxes and reflectors. Ensure the adapter ring is securely attached before mounting accessories.
Image 3.2: The AD400Pro supports various accessories by replacing its adapter ring, including different flash heads and modifiers.
4. Operating Instructions
4.1 Power and Recycling Time
The AD400Pro delivers 400Ws of flash power (Guide Number 72). The 21.6V 2600mAh lithium battery provides approximately 380 full-power flashes with a rapid recycle time of 0.01 to 0.9 seconds. Flash power is adjustable in 9 steps from 1/128 to 1/1. The unit also features a power indicator and auto sleep mode to conserve battery life.
4.2 TTL and HSS Functions
The AD400Pro fully supports TTL (Through-The-Lens) functionality, including Master/Slave modes, flash exposure compensation, 1/8000s High-Speed Sync (HSS), first/second-curtain sync, and multi-flash modes. It also includes a 30Ws modeling lamp and C.Fn custom functions. The flash maintains a stable 5600K color temperature. It is compatible with various camera systems (Canon, Sony, Nikon, Olympus, Fuji, Panasonic) and can be triggered by Godox X3/Xpro II/X2T triggers.
Video 4.1: This video demonstrates the use of a Godox flash (AD200 Pro II, similar in function to AD400Pro) in various outdoor photography scenarios, showcasing its versatility and power in controlling light for portraits and creative shots.
4.3 Wireless Control
The AD400Pro integrates with the Godox 2.4G Wireless X System, allowing it to be triggered and controlled wirelessly by compatible Godox X-series triggers (e.g., X3, Xpro II, X2T). This enables remote adjustment of flash settings and coordination with other Godox flash units.
Image 4.1: A Godox X3 wireless trigger shown mounted on a camera, used for remote control of the AD400Pro flash.
5. Product Maintenance
5.1 Battery Care
To ensure optimal performance and extend battery life, avoid completely draining the battery before recharging. If the battery has not been used for an extended period (e.g., one month), it may enter hibernation mode. To reactivate, press the battery activation key several times until the battery indicator lights up, then recharge normally. Periodically charge the battery or power up the flash to prevent over-discharge.
6. Troubleshooting
No specific troubleshooting section is provided in the product details. For common issues, please refer to the general instruction manual included in the package or contact Godox customer support.
7. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | GODOX |
| Model Number | YHGD-AD400Pro |
| Item Weight | 4.62 pounds |
| Product Dimensions | 8.66 x 4.02 x 5.04 inches |
| Batteries | 1 Lithium Ion batteries required (included) |
| Compatible Mountings | Canon, Sony, Nikon, Fujifilm, Panasonic, Olympus |
| Battery Life | 120 minutes (approximate) |
| Flash Sync Speed | Up to 1/8000 seconds |
| Flash Power | 400Ws |
| Recycle Time | 0.01-0.9 seconds |
| Color Temperature | 5600K |
8. Warranty and Support
Specific warranty details are not provided in the product information. Please refer to the warranty card included with your product or visit the official Godox website for detailed warranty information and customer support contacts.
