1. Produto rematadoview
The Buff AlienBees B400 is a powerful, versatile, and accurate self-contained studio flash unit designed for various photographic applications. It features easy-to-use analog controls and is suitable for students, hobbyists, and professional photographers.

Imaxe 1.1: Lado view of the AlienBees B400 Monolight with a 7-inch silver field reflector attached.
Características principais:
- 6 f-stop power variability (5 Ws to 160 Ws)
- Continuous slider adjustment from full to 1/32 power
- Internal cooling fan for heavy-duty use
- WYSIWYG (What You See Is What You Get) modeling previews
- Standard 120 VAC, 50-60 Hz power requirements
2. Contido do paquete
Verifique que todos os elementos que se indican a continuación estean incluídos no seu paquete:
- AlienBees B400 Monolight Unit
- 7-inch Silver Field Reflector
- Protective Shipping Cover
- 150W Modeling Lamp
- Flashtube
- Down-Angle 15 ft. Power Cord
- Standard 15 ft. Sync Cord (1/8" to PC)
- Light Stand Mounting Block
- AlienBees Product Manual (this document)
3. Información de seguridade
Read all instructions before using the AlienBees B400 Monolight. Failure to follow these safety guidelines may result in electric shock, fire, or serious injury.
- Seguridade eléctrica: Always connect the unit to a grounded outlet. Do not operate with wet hands or in damp ambientes. Desconecte a alimentación antes de limpar ou realizar o mantemento.
- Calor: The flashtube and modeling lamp can become very hot during operation. Allow adequate cooling time before handling. Do not cover the ventilation openings.
- Protección ocular: Avoid looking directly into the flash when it fires, as it can cause temporary vision impairment.
- Colocación: Ensure the unit is securely mounted on a stable light stand to prevent tipping. Keep away from flammable materials.
- Nenos e animais: Manteña a unidade fóra do alcance dos nenos e animais.
4. Configuración
4.1. Montaxe da Unidade
Attach the AlienBees B400 Monolight to a compatible light stand using the integrated light stand mounting block. Ensure the unit is securely tightened to prevent accidental detachment.
4.2. Potencia de conexión
Connect the provided 15 ft. power cord to the power inlet on the rear of the unit and then to a standard 120 VAC, 50-60 Hz grounded electrical outlet. The unit requires 105-125VAC, 50-60Hz, connecting only to a grounded outlet.
4.3. Connecting Sync Cord
For wired synchronization with your camera, connect the 15 ft. sync cord (1/8" to PC) to the sync port on the rear of the monolight and to your camera's PC sync terminal. If your camera lacks a PC sync terminal, a hot shoe adapter may be required (sold separately). Alternatively, wireless remotes can be used for triggering.
4.4. Attaching Reflector and Modeling Lamp
Carefully insert the 150W modeling lamp into its socket. Attach the 7-inch silver field reflector to the front of the unit by aligning the tabs and twisting to lock it into place. Ensure the protective shipping cover is removed before operation.

Imaxe 4.1: Fronte view of the AlienBees B400, illustrating the flash tube and modeling lamp montaxe.
5. Instrucións de funcionamento
5.1. Panel de control rematadoview
The rear panel of the AlienBees B400 features all necessary controls for operation. Familiarize yourself with the layout:

Imaxe 5.1: Rear control panel of the AlienBees B400, showing power adjustment slider, sync, slave, and modeling lamp controis.
5.2. Power Adjustment
Use the continuous slider control on the rear panel to adjust the flash output from full power (160 Ws) down to 1/32 power (5 Ws), offering 6 f-stops of variability. The indicator lights above the slider show approximate power levels.
5.3. Modelado Lamp Operación
A l de modelado de 150 Wamp provides continuous light for previewing lighting effects. Use the dedicated switch on the control panel to turn the modeling lamp ON or OFF. The modeling lamp can also be set to track the flash power or operate independently.
5.4. Modos de sincronización
- Cable de sincronización: Connect a sync cord from the unit to your camera's PC sync terminal.
- Modo escravo: Activate the SLAVE function on the control panel. The AlienBees B400 will then fire automatically when it detects another flash firing.
- Mando a distancia sen fíos: If using an optional wireless remote system, follow the remote's instructions for pairing and triggering.
6. Mantemento
6.1. Limpeza
Ensure the unit is unplugged and cooled before cleaning. Use a soft, dry cloth to wipe the exterior. For the flashtube and modeling lamp, use a clean, lint-free cloth, avoiding abrasive cleaners that could damage the surfaces.
6.2. Flashtube and Modeling Lamp Substitución
The flashtube and modeling lamp are user-replaceable. Always ensure the unit is unplugged and completely cooled before attempting replacement. Refer to the detailed instructions provided with replacement parts for proper installation. Handle flashtubes by their base to avoid touching the glass.
7 Solución de problemas
If you encounter issues with your AlienBees B400, consult the following table for common problems and solutions:
| Problema | Causa posible | Solución |
|---|---|---|
| A unidade non se acende | Power cord not connected; Outlet not active; Unit switch off | Check power cord connection; Test outlet; Ensure POWER ON/OFF switch is ON |
| O flash non se dispara | Sync cord loose/faulty; Slave mode not activated; Camera settings incorrect; Flashtube faulty | Check sync cord connection; Activate SLAVE mode; Verify camera flash settings; Replace flashtube |
| Modelado lamp non funciona | Modelado lamp switch off; Lamp queimado | Turn MODEL LAMP switch ON; Replace modeling lamp |
| Saída de flash inconsistente | Power setting unstable; Unit overheating | Ensure power slider is set firmly; Allow unit to cool down (internal fan should prevent this under normal use) |
8. Especificacións
| Característica | Especificación |
|---|---|
| Número de modelo | B400 |
| Marca | Buff (Paul C. Buff, Inc.) |
| Saída de flash | 160 Ws (Watt-seconds) |
| Power Variability | 6 f-stops (5 Ws to 160 Ws), continuous slider adjustment |
| Modelado Lamp | 150 W |
| Requisitos de enerxía | 120 VAC, 50-60 Hz (105-125VAC) |
| Velocidade de sincronización do flash | Ata 1/250 segundos |
| Montaxes compatibles | Hot Shoe Mount (via sync cord/adapter) |
| Refrixeración | Ventilador de refrixeración interno |
9. Garantía e soporte
9.1. Información da garantía
The Buff AlienBees B400 Monolight comes with a 2 ano de garantía de fábricaEsta garantía cobre defectos de materiais e fabricación en condicións normais de uso. Conserve o comprobante de compra para reclamacións de garantía.
9.2. Atención ao cliente
For technical assistance, service, or warranty inquiries, please contact Paul C. Buff, Inc. customer support directly. Visit their official websitio para obter a información de contacto e os recursos de asistencia máis actuais.
Fabricante: Paul C. Buff, Inc.
Websitio: www.paulcbuff.com (Please note: This link is an example and may not be the exact current support URL. Refer to product packaging or official brand information for precise details.)





