Godox QT Series Fast-Speed Flash

Foreword

Thanks for choosing the QT series fast-speed flash. It offers wide-range applicability, perfect for studio, workshop, wedding, portrait, advertisement, and fashion photography. It allows photographers to capture fast-changing moments with its quick recycling times and freeze action with short flash durations.

Key Benefits:

• Ultra-speedy charging: 0.05-1.2s recycling time.
• Multi-freeze shots: 1/5000s-1/800s flash duration.
• High-speed continuous shooting: Up to 10 shots per second.
• Precise output control: LED display, 50 steps from 5.0-10.0 in 0.1 increments.
• High-qualified modeling lamp: 150W adjustable output.
• Stable output variability: ≤2% between continuous flashes.
• Consistent color temperature: Ranging within ±100K over the entire power range.

Safety Information

Warning ⚠️

To prevent damage or injury, read all warnings before use. Keep these warnings accessible.

• Do not disassemble or modify. Send defective units to an authorized service center.
• Keep dry. Do not handle with wet hands, immerse in water, or expose to rain.
• Keep out of reach of children.
• Ensure ventilation and keep lighting/heat dissipation holes unobstructed. Do not use in flammable environments.
• Handle with care; this product uses a make-and-break device.
• Avoid touching hot parts.
• Turn off power and wear insulated gloves before installing/connecting accessories. Ensure the tube is cool and wear gloves when replacing the tube or modeling lamp to prevent burns.
• Do not flash directly towards naked eyes (especially babies) as it may cause visual impairment.
• Disconnect from power when not in use for extended periods.

Caution ⚠️

After 30 continuous full-power flashes, allow the unit to cool for approximately 3 minutes to prevent overheating.

• Do not use the modeling lamp for extended periods, as flammable accessories (e.g., softboxes) can burn. Limit use to 10 minutes, then cool for 1 minute.
• When using a snoot, limit modeling lamp use and flash frequency (max 6 times/minute) to prevent overheating and damage.
• Avoid sudden impacts, which can damage the flash tube and modeling lamp.

Names of Parts

Body

The flash unit body includes the following components:

• 1. AC Power Socket: For connecting the power cord.
• 2. Sync Cord Jack: 6.35mm plug for camera sync cord.
• 3. Power Switch: Turns the unit on/off.
• 4. Modeling Lamp Output Controller: Adjusts modeling lamp brightness.
• 5. Flash Output Controller: Adjusts flash power output.
• 6. Modeling Lamp Button: Toggles the modeling lamp on/off.
• 7. Sound Button: Controls the audible charge-complete indicator.
• 8. Slave Model Button: Selects slave trigger mode.
• 9. Test Button: Fires the flash manually.
• 10. Digital Display: Shows flash power level and status.
• 11. Modeling Lamp Indicator: Lights up when the modeling lamp is on.
• 12. Buzz Indicator: Lights up when the sound reminder is active.
• 13. Slave Triggering Indicator: Shows the status of the slave trigger function (off, blue for one-fire, red for anti-preflash).
• 14. Test Indicator Lamp: Indicates when the test button is active.
• 15. Light Sensor: Receives optical trigger signals.
• 16. Wireless Control Port: For connecting wireless triggers.
• 17. Fuse: Protects the unit from overcurrent.
• 18. Mounting Bracket: Attaches the flash to a light stand.
• 19. Umbrella Input: For mounting photographic umbrellas.
• 20. Direction Adjusting Handle: Allows tilting and swiveling the flash head.

[Image Description: A diagram showing the Godox QT Series flash body with numbered parts corresponding to the list above.]

Included Accessories

• 1. Power Cord
• 2. Standard Reflector
• 3. Lamp Cover
• 4. Glass Protection Cover
• 5. Modeling Lamp
• 6. Instruction Manual

[Image Description: A collection of the included accessories: power cord, standard reflector, lamp cover, glass protection cover, and modeling lamp.]

Separately Sold Accessories

Enhance your photography with these compatible accessories:

• Wireless power-control flash trigger
• Power Inverter
• Softbox
• Photographic Umbrella
• Light Stand
• Barndoor
• Snoot
• And more...

[Image Description: A collage of various photography accessories available for separate purchase, including wireless triggers, softboxes, umbrellas, and light stands.]

Operations

Flash Preparation

1. Remove the lamp cover. Install the modeling lamp, then attach the glass protection cover and the standard reflector. (To uninstall, reverse the process.)
2. Mount the flash unit onto a suitable light stand using the mounting bracket (18). Adjust for the desired angle and ensure it is securely fixed. Use the direction adjusting handle (20) to position the flash. The umbrella input (19) is for attaching photographic umbrellas.

[Image Description: Visuals showing the steps for attaching the reflector and mounting the flash unit onto a light stand.]

Power Connection

Connect the flash unit to an AC power source using the provided power cord. Turn on the power switch (3). The indicator lamp on the switch will illuminate, confirming power connection.

Modeling Lamp

Use the Modeling Lamp Button (6) to control the modeling lamp. When the modeling lamp indicator (11) is lit, the modeling lamp is on. If it's off, the modeling lamp is off.

The modeling lamp output controller (4) adjusts its brightness. The modeling lamp will automatically turn off after 2 hours of continuous use to prevent overheating when the user is not nearby.

⚠ Important: When using flammable accessories (like softboxes) with the flash unit, do not keep the modeling lamp on for extended periods. It is recommended to cool the unit down for one minute after 10 minutes of modeling lamp use.

Power Output Control

The Flash Output Controller (5) allows adjustment of flash power output, catering to various lighting needs. Power is adjustable from 5.0 to 10.0, displayed on the digital display (10). An "OF" display indicates the flash triggering function is off. The unit automatically discharges when flash output is adjusted from high to low.

Test Button

Press the Test Button (9) to fire the flash without taking a picture. This can also assist in adjusting flash brightness in conjunction with the Flash Output Controller (5).

Sync Triggering

The Sync Cord Jack (2) is a 6.35mm plug. Insert a camera sync cord here to fire the flash synchronously with the camera shutter.

[Image Description: A close-up of the sync cord jack on the flash unit.]

Slave Trigger Model

Three slave triggering modes are available, selected via the Slave Model Button (8):

1. No optical control: The slave triggering indicator (13) is off. Slave triggering is disabled.
2. One fire model: The slave triggering indicator (13) glows blue. The flash fires synchronously with one external flash. This mode allows the flash to act as an auxiliary light for creating lighting effects.
3. Anti-preflash model: The slave triggering indicator (13) glows red. The flash detects two external flashes within 2 seconds and fires synchronously after the second flash. This mode is useful for TTL systems and cameras with a one-preflash firing system, acting as an auxiliary light.

Buzz Function

The Sound Button (7) controls the audible charge-complete indicator. When the Buzz Indicator (12) is on, the buzz function is active; when off, it is inactive. A "BI" sound confirms the flash is fully charged.

Memory Function

The device features a memory function for panel settings. It saves the settings made in the last 3 seconds. Upon next startup, the flash will revert to these saved settings.

Wireless Control Function

Using a compatible wireless power-control flash trigger, you can wirelessly control the flash's on/off, modeling lamp, buzzer, and adjust flash output level. Connect the trigger receiver to the Wireless Control Port (16) and configure settings on the trigger. You can also trigger the flash remotely by placing the transmitter's hotshoe onto the camera's hotshoe.

Tube Replacement

Procedure:

1. Shut down the power and disconnect the power cord. Wear insulated gloves.
2. Loosen the retaining wire on the flash tube.
3. Gently pull out the old flash tube, holding it by its feet.
4. Remove the feet casing from the old tube and attach it to the new tube.
5. Align the feet of the new tube with the copper outlets and gently push them in.
6. Secure the new tube by twisting the retaining wire onto the stainless steel sheet.

[Image Description: Visuals illustrating the process of replacing the flash tube, showing how to remove the old tube and install the new one.]

Technical Data

Maintenance

• Shut down the device immediately if it malfunctions and investigate the cause.
• Avoid sudden impacts. Dust the lamp regularly.
• It is normal for the lamp to become warm during use. Avoid continuous flashing when not necessary.
• Maintenance for all flashes should be performed by an authorized service department that can supply original accessories. Users may replace the flash tube and modeling lamp provided by the manufacturer.
• The one-year warranty is voided if unauthorized maintenance is attempted.
• If the product fails or gets wet, it must be repaired by professionals before use.
• Disconnect the power before performing maintenance or cleaning.
• Specifications and designs may change without prior notice in this manual.