1. Introduction
Thank you for purchasing the Godox IT20S Mini Camera Flash. This ultra-compact and portable TTL flash is designed to provide effortless and precise lighting for your photography. Featuring Smart TTL technology, a built-in rechargeable battery, and intuitive controls, the IT20S is an ideal companion for capturing life's moments with optimal illumination. Please read this manual thoroughly before use to ensure proper operation and to maximize the potential of your device.

Figure 1.1: Godox IT20S Mini Camera Flash with accessories.
2. Key Features
- Smart TTL Technology: Automatic flash output adjustment for fast and accurate exposure.
- Ultra-Compact & Portable: Weighing just 45g, its minimal size fits easily into any bag.
- One-Touch M/TTL Mode Switching: Instantly switch between Manual and TTL modes with a dedicated button.
- High-Definition Display: Provides real-time settings for quick adjustments.
- Long-Lasting Battery: Offers 700+ flashes per charge at full power.
- Fast Recycling Time: Achieves 1.5-second recycle time at full power.
- Precise Power Control: Adjust flash intensity across 6 stops (1/32 to 1/1 power) in +1/3-step increments.
- USB-C Rechargeable: Built-in lightweight lithium battery with fast charging.
- Magnetic Accessory System: Compatible with magnetic diffusers and color filters for creative lighting.
Important Note: This flash supports TTL (Through-The-Lens) metering but does NOT support High-Speed Sync (HSS). To ensure proper flash synchronization, we recommend using a shutter speed of 1/160s or slower.

Figure 2.1: Overview of Godox IT20S key features.

Figure 2.2: The ultra-compact and portable design of the IT20S.
3. What's in the Box
Verify that all the following items are included in your package:
- 1x Godox IT20S MINI Flash Unit
- 1x USB-C Charging Cable
- 1x Storage Bag
- 1x Spreader (Magnetic)
- 1x Color Filters (Magnetic)
- 1x Instruction Manual (This document)

Figure 3.1: All items included in the Godox IT20S package.
4. Setup
4.1 Charging the Battery
The Godox IT20S features a built-in lithium battery. Before first use, or when the battery indicator shows low power, charge the device using the provided USB-C cable.
- Connect the USB-C end of the charging cable to the USB-C port on the flash unit.
- Connect the other end of the USB-C cable to a compatible USB power adapter (e.g., phone charger, computer USB port).
- The battery indicator on the flash display will show charging status. A full charge typically takes about an hour.

Figure 4.1: Charging the Godox IT20S via USB-C.
4.2 Attaching to Camera
The IT20S is designed to mount onto your camera's hot shoe.
- Ensure your camera is turned off.
- Slide the mounting foot of the IT20S into your camera's hot shoe slot.
- Gently push forward until it clicks securely into place.
- To remove, press the release button (if present on your camera's hot shoe) and slide the flash backward.
Tip: For Sony cameras, if you use a wide-angle lens, you may need a TTL hot shoe riser (sold separately) to raise the hot shoe height and prevent lens shadow.
5. Operating Instructions
5.1 Power On/Off
- To power on, press and hold the power button (usually marked with a power symbol) until the display lights up.
- To power off, press and hold the power button again until the display turns off.
5.2 Mode Switching (TTL/Manual)
The IT20S supports both TTL (Through-The-Lens) and Manual flash modes.
- Press the dedicated 'M/TTL' button to toggle between TTL and Manual modes.
- In TTL mode, the flash automatically adjusts its output based on the camera's metering for balanced exposure.
- In Manual mode, you have full control over the flash power output.

Figure 5.1: TTL Flash Mode for automatic metering.
5.3 Power Control (Manual Mode)
In Manual mode, you can precisely control the flash output.
- Use the '+' and '-' buttons to adjust the flash power.
- The power can be adjusted across 6 stops, from 1/32 to 1/1, in precise +1/3-step increments.
- The high-definition display will show the current power setting.

Figure 5.2: Fine-tuning flash output in Manual mode.
5.4 Using Magnetic Accessories
The Godox IT20S comes with magnetic accessories (spreader and color filters) that attach easily to the front of the flash.
- Simply align the magnetic accessory with the front of the flash unit.
- The magnets will securely hold the accessory in place.
- Use the spreader to soften and diffuse the light for a more natural look.
- Use the color filters to add creative color effects to your lighting.

Figure 5.3: Attaching magnetic accessories to the IT20S flash.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the flash unit. Do not use harsh chemicals or abrasive materials.
- Storage: Store the flash in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided storage bag for protection.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the unit regularly, even if not in use, to maintain battery health.
- Handle with Care: The flash contains delicate electronic components. Avoid dropping or subjecting it to strong impacts.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Flash does not fire. | Low battery; Incorrect mounting; Camera settings. | Charge the battery; Re-mount the flash securely; Check camera flash settings. |
| Flash overexposes/underexposes. | Incorrect mode (TTL/Manual); Power setting too high/low. | Switch to TTL mode for automatic adjustment; Adjust manual power setting; Check camera's exposure compensation. |
| Flash casts a shadow. | Wide-angle or protruding lens. | Consider using a TTL hot shoe riser (sold separately) for better clearance. |
| Flash not syncing with fast shutter speeds. | No HSS support. | Ensure shutter speed is 1/160s or slower. This model does not support High-Speed Sync. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | IT20S |
| Item Weight | 0.634 ounces |
| Package Dimensions | 3.07 x 3.03 x 2.05 inches |
| Battery | Built-in Lithium (7.4V 300mAh) |
| Recycle Time | 1.5s (at full power) |
| Flashes per Charge | 700+ (at full power) |
| Power Control | 6 stops (1/32 to 1/1) in +1/3-step increments |
| Camera Flash Type | Hotshoe |
| Compatible Mountings | For SONY Cameras |
| Color | Black |
9. Official Product Video
Video 9.1: Official Godox IT20 TTL Mini Flash overview and demonstration. This video showcases the flash in various usage scenarios, highlighting its compact size, ease of use, and lighting capabilities for both casual and creative photography.
10. Warranty and Support
Godox products are backed by a manufacturer's warranty. For detailed warranty information, technical support, or service inquiries, please refer to the warranty card included in your package or visit the official Godox website. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, you may also contact the seller, LetWell, through the Amazon platform.