1. Introducció
The Godox AD400Pro TTL Studio Flash is a versatile and powerful outdoor flash unit designed for professional photographers. It integrates a built-in 2.4G wireless X system, high-speed sync (HSS), and a robust lithium battery, offering portability and consistent performance for various shooting environments. This manual provides detailed instructions for the safe and effective use of your AD400Pro flash.
Les característiques clau inclouen:
- 400Ws high power output with stable color temperature.
- Built-in Godox 2.4G wireless X system for comprehensive compatibility with Canon E-TTL II, Nikon i-TTL, Sony, FUJIFILM, Olympus, and Panasonic TTL autoflash systems.
- High-Speed Sync up to 1/8000s.
- Fast recycle time of 0.01-1 seconds.
- Powerful 21.6V/2600mAh lithium battery providing approximately 390 full power flashes.
- Modelatge LED de 30W lamp.
- Bowens mount compatibility for a wide range of accessories.
2. Precaucions de seguretat
Please read and understand all safety instructions before using this product to prevent injury to yourself or others and damage to the product.
- Do not disassemble or modify this product. If the product fails, it must be repaired by an authorized maintenance center.
- Mantingueu aquest producte sec. No el manipuleu amb les mans mullades ni el submergiu en aigua.
- No utilitzeu el flaix en presència de gasos, productes químics o altres materials inflamables. En determinades circumstàncies, aquests materials poden ser sensibles a la llum intensa emesa per aquest flaix, i es poden produir incendis o interferències electromagnètiques.
- Do not leave or store the flash unit in environments with high temperatures, such as in a vehicle on a hot day.
- No dispareu el flaix directament als ulls (especialment els dels nadons) a distàncies curtes. En cas contrari, es pot produir una discapacitat visual.
- Feu servir només la bateria i el carregador especificats.
- Assegureu-vos que el producte estigui ben muntat quan l'utilitzeu per evitar caigudes accidentals.
- Desendolleu el cable d'alimentació quan no l'utilitzeu o abans de netejar-lo.
3. Què hi ha a la caixa
Verifiqueu que tots els elements siguin presents al vostre paquet:
- 1 * Godox AD400Pro Flash Unit
- 1 * Bossa de transport
- 1 * Flash Tube
- 1 * Lithium Battery (21.6V/2600mAh)
- 1 * Carregador de bateria
- 1 * Cable d'alimentació
- 1 * Standard Reflector
- 1 * Manual d'usuari
- 1 * Bowens-Mount Adapter Ring
4. Producte acabatview
Familiarize yourself with the components and controls of your AD400Pro flash unit.

Figure 4.1: AD400Pro Flash Unit with Labeled Components
Components clau:
- Tub de flaix: The light-emitting element.
- Modelatge Lamp: A continuous LED light for previewefectes d'il·luminació.
- Pantalla LCD: Shows current settings, modes, and battery status.
- Tauler de control: Buttons and dial for adjusting settings.
- Compartiment de la bateria: Houses the lithium battery.
- Suport de muntatge: For attaching the flash to a light stand.
- Puig de Bowens: Standard mount for attaching light modifiers.
- Port USB tipus C: Per a actualitzacions de firmware.
- 3.5mm Sync Cord Jack: For wired triggering.
Botons de control:
- Interruptor d'alimentació: Encén/apaga la unitat.
- Botó de selecció de mode: Cycles through flash modes (TTL, Manual, Multi).
- Wireless Selection Button: Activates/deactivates wireless function.
- Group/Channel Button: Sets wireless groups and channels.
- Seleccionar marcatge: Navigates menus and adjusts values.
- Botó de configuració: Confirma les seleccions.
- Botó de menú: Accedeix a la configuració del sistema.
- Botó de prova: Dispara un flaix de prova.
- Modelatge Lamp Botó: Controla la l de modelatgeamp.
- High Speed Sync Button: Activates HSS mode.
5. Configuració
5.1 Attaching the Flash Tube
- Align the pins on the flash tube with the sockets on the flash head.
- Empenyeu suaument el tub del flaix fins que faci clic de manera segura.

Figure 5.1: Flash Tube Installation
5.2 Inserció de la bateria
- Obriu la tapa del compartiment de la bateria.
- Insert the lithium battery, ensuring the contacts align correctly.
- Close the battery compartment cover until it locks.

Figure 5.2: Lithium Battery
5.3 Muntatge a un suport de llum
- Loosen the bracket locking ring on the flash unit's mounting bracket.
- Slide the mounting bracket onto the light stand stud.
- Tighten the bracket locking ring to secure the flash unit.
5.4 Adjuntar modificadors de llum
The AD400Pro features a Bowens mount for attaching various light modifiers.
- Align the modifier's mounting tabs with the slots on the Bowens mount adapter ring.
- Introduïu el modificador i gireu-lo en sentit horari fins que quedi bloquejat.
- To remove, press the release button on the adapter ring and rotate counter-clockwise.

Figure 5.3: AD400Pro with Reflector
6. Instruccions de funcionament
6.1 Encès/Apagat
Press the Power Switch to turn the flash unit on or off.
6.2 modes de flaix
Press the Mode Selection Button to cycle through the available flash modes:
- Mode TTL (a través de la lent): The flash output is automatically adjusted by the camera's metering system.
- Mode manual (M): Allows manual control over flash power output (e.g., 1/1 to 1/256).
- Mode Multi (Estroboscòpic): Fires a series of rapid flashes during a single exposure to capture multiple images of a moving subject.

Figure 6.1: TTL Auto Exposure in use
6.3 Funcionament del sistema Wireless X
The AD400Pro features a built-in 2.4G wireless X system for remote control and triggering.
- Funció mestre/esclau: The AD400Pro can act as a master or slave unit. When used as a slave, it can be triggered by Godox TTL camera flashes or other Godox outdoor TTL flashes.
- Compatibilitat: Compatible with Godox X1T, X2T, XPro, and XProII series triggers (sold separately) for Canon, Nikon, Sony, Fuji, Panasonic, Olympus, and Pentax systems.
- Setting Groups and Channels: Use the Group/Channel button and Select Dial to set the desired group and channel for wireless communication. Ensure your trigger and flash are set to the same group and channel.

Figure 6.2: Godox 2.4G Wireless System Compatibility
6.4 Sincronització d'alta velocitat (HSS)
Press the HSS button to activate High-Speed Sync mode, allowing you to shoot at shutter speeds up to 1/8000s. This is useful for freezing fast motion or overpowering ambient light.

Figure 6.3: High-Speed Continuous Shooting
6.5 Compensació d'exposició del flaix (FEC)
In TTL mode, you can adjust the flash exposure compensation from -3 to +3 in 1/3rd stop increments using the Select Dial. This allows for fine-tuning of flash output based on environmental conditions or creative intent.
6.6 Modelatge Lamp
Premeu la tecla Modelatge Lamp Button to turn the 30W LED modeling lamp on or off. The modeling lamp helps visualize the light's effect on your subject before firing the flash.
6.7 Opcions d'alimentació
The AD400Pro can be powered by its included lithium battery or an optional AC adapter (Godox AD-AC, sold separately) for continuous studio use.

Figure 6.4: Dual Power Methods (Battery and AC Adapter)
7. Manteniment
7.1 Neteja
Clean the flash unit regularly with a soft, dry cloth. Do not use solvents or abrasive cleaners. For the flash tube, use a clean, lint-free cloth to gently wipe away any dust or fingerprints.
7.2 Cura de la bateria
- It is recommended to recharge the battery at regular intervals, even if not fully discharged. Do not wait for the battery to be completely depleted before recharging.
- If the battery cannot be recharged due to prolonged inactivity, press the button on the right side of the indicator several times to activate the battery.
- Emmagatzemeu la bateria en un lloc fresc i sec, lluny de la llum solar directa i de temperatures extremes.
7.3 Emmagatzematge
When not in use for extended periods, remove the battery from the flash unit and store both in a protective case in a cool, dry environment.
8. Solució De Problemes
If you encounter issues with your AD400Pro flash, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| El flaix no es dispara. | Low battery; incorrect wireless settings; flash not powered on; camera not triggering. | Charge the battery; check wireless channel/group; ensure flash is on; check camera flash settings and trigger connection. |
| La bateria no es carrega. | Charger not connected; battery deeply discharged; faulty battery/charger. | Ensure charger is properly connected; press the battery activation button if inactive for long periods; contact support if issue persists. |
| Sortida de flaix inconsistent. | Low battery; flash overheating; incorrect mode/settings. | Charge battery; allow flash to cool down; verify flash mode and power settings. |
| El disparador sense fil no funciona. | Incorrect channel/group; trigger battery low; distance too far. | Match channel/group on flash and trigger; replace trigger battery; reduce distance between trigger and flash. |
Si el problema persisteix després d'intentar aquestes solucions, poseu-vos en contacte amb el servei d'atenció al client de Godox.
9. Especificacions
| Característica | Especificació |
|---|---|
| Marca | GODOX |
| Número de model | AD400Pro (LW-AD400Pro) |
| Potència de sortida | 400 Ws |
| Número de guia | GN72 (m) |
| Velocitat de sincronització del flaix | Fins a 1/8000s (HSS) |
| Temperatura de color | 4800K (±75K over entire power range in color temperature mode) |
| Bateria | Bateria de liti de 21.6 V/2600 mAh |
| Flaixos de potència total | Aprox. 390 |
| Temps de reciclatge | 0.01-1 segons |
| Dimensions (D x H) | 12.8P x 12.8H centimeters (without flash tube and reflector) |
| Pes | 2.1 kg (without flash tube and reflector) |
| Muntatge compatible | Bowens Mount (via adapter ring), ISO Mount, Sony, Fujifilm, Canon, Nikon, Screw Mount |
| Tecnologia sense fils | RF de 2.4 G |
| Interfície | USB Type-C (for firmware upgrade), 3.5mm Sync Cord Jack |
| Tipus de control d'exposició | Automàtic |
| Interval ISO | ISO 100-6400 |
10. Garantia i Suport
10.1 Informació de la garantia
The Godox AD400Pro TTL Studio Flash comes with a 365-day warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
10.2 Atenció al client
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact your authorized Godox dealer or visit the official Godox weblloc per obtenir informació de contacte d'assistència.