1. Introduction
Thank you for choosing the TELESIN Smartphone Magnetic Fill Light. This compact and versatile accessory is designed to enhance your smartphone photography and videography with adjustable lighting, a built-in mirror, and a convenient phone stand. This manual provides essential information for safe and effective use of your device.

Figure 1: TELESIN Magnetic Fill Light Overview
2. Package Contents
- TELESIN C03 Magnetic Fill Light x1
- Universal Magnetic Ring x1
- Type-C Charging Cable x1
- Instruction Manual x1
3. Product Overview & Features
Video 1: Product Demonstration of the TELESIN Magnetic Fill Light
3.1 Magnetic Attachment
The fill light features a strong magnetic attraction for quick and secure attachment. It is MagSafe compatible for iPhones. For non-MagSafe devices, use the included universal magnetic ring.

Figure 2: Instant Magnetic Connection
3.2 Rotatable & Extendable Design
The fill light offers 360° rotation and a 36mm extendable rod, allowing for flexible positioning for various shooting angles and as a phone stand.

Figure 3: Rotatable Fill Light 360° Coverage
3.3 Built-in Mirror
A 56mm high-definition makeup mirror is integrated for quick touch-ups.

Figure 4: Instant Touch-Ups with Built-in Mirror
3.4 Phone Stand Functionality
The light can be folded and positioned to transform into a stable phone holder for hands-free viewing.

Figure 5: 2-in-1 Phone Stand
4. Setup & Installation
- For MagSafe Compatible Phones (e.g., iPhone): Simply align the magnetic fill light with the back of your phone until it snaps into place.
- For Non-MagSafe Phones (e.g., Samsung, Xiaomi, Huawei):
- Clean the back surface of your phone or phone case where you intend to attach the light.
- Peel off the protective film from the adhesive side of the universal magnetic ring.
- Carefully center the magnetic ring on the back of your phone or case, ensuring it does not obstruct camera lenses or other important sensors. Press firmly to secure.
- Once the magnetic ring is attached, you can magnetically attach the fill light to the ring.
- Positioning: The light can be rotated 360° and flipped 180° to direct light as needed. The extendable rod allows for optimized heights (18mm for horizontal shots, 36mm for vertical shots).
5. Operating Instructions
- Power On/Off: Long press the power button (switch) for 3 seconds to turn the light on or off.
- Adjusting Color Temperature: Short press the power button to cycle through the three color temperature modes:
- Warm Light (2700K): For cozy, inviting tones.
- Neutral Light (5600K): Standard, balanced lighting.
- Cool Light (7500K): Bright, crisp lighting.

Figure 6: 3 Mode Brightness (Color Temperature)
- Adjusting Brightness: Use the touch wheel to seamlessly adjust brightness from 10% to 100%. Turning the wheel to the right decreases brightness.
- Using as a Phone Stand: Fold the magnetic base to create a stable stand for your phone.
- Using the Mirror: Flip open the built-in 56mm HD makeup mirror for quick touch-ups.
6. Charging & Battery
The fill light is equipped with a built-in 500mAh rechargeable battery.
- Charging: Connect the included Type-C charging cable to the light's Type-C interface and a 5V/1A power source.
- Battery Indicator: The battery indicator light will show a breathing light status while charging.
- Battery Life: Expect approximately 45 minutes of runtime at maximum brightness and up to 500 minutes at minimum brightness.

Figure 7: Charging and Battery Information
7. Specifications
| Feature | Detail |
|---|---|
| Model | S5-BGD-01 |
| Dimensions | 60mm diameter, 19mm thick |
| Weight | 80g |
| Battery Capacity | 500mAh / 3.7V |
| Runtime (Max Brightness) | Approx. 45 minutes |
| Runtime (Min Brightness) | Approx. 500 minutes |
| Charging Input | 5W, 5V/1A (Type-C) |
| Light Angle | 120 degrees |
| Illuminance | 200 lux at 0.5m |
| Color Temperature | 2700K (Warm), 5600K (Neutral), 7500K (Cool) |
| Color Rendering Index (CRI) | ≥ 95 |
| Max Power | 2.5W |
| Operating Temperature | 5°C to 45°C |
| Inbox Adaptor | No |
| Certification | CE |
Note: Data tested by Telesin Lab; actual use may vary slightly.
8. Maintenance
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Keep the magnetic surfaces clean to ensure a strong attachment.
- Store the fill light in a cool, dry place away from direct sunlight and extreme temperatures.
9. Troubleshooting
- Light not turning on: Ensure the battery is charged. Long press the power button for 3 seconds.
- Light not charging: Check the Type-C cable and power adapter. Ensure they are properly connected and functioning.
- Weak magnetic attachment: Ensure both the light's magnetic surface and your phone/magnetic ring are clean and free of debris. If using the universal magnetic ring, ensure it is securely attached to your phone/case.
- Light flickering or inconsistent brightness: Try fully charging the device. If the issue persists, contact customer support.
10. User Tips
- Optimal Lighting: Experiment with the three color temperatures (Warm, Neutral, Cool) to match your environment and achieve the most natural skin tones in your photos and videos.
- Versatile Use: Utilize the 360° rotation and 180° flip features to direct light precisely where needed, whether for front-facing selfies or illuminating subjects with the rear camera.
- Portability: Given its compact size and light weight (80g), this fill light is highly portable. Always carry it with you to ensure you have optimal lighting for any spontaneous photo or video opportunity.
- Magnetic Ring Placement: When applying the universal magnetic ring, carefully position it to avoid blocking your phone's camera lenses or flash for uninterrupted functionality.
11. Safety Information
- This product is a precision instrument. Avoid dropping or subjecting it to strong impacts to prevent malfunctions.
- Do not disassemble, modify, or attempt to repair the device yourself. This may void the warranty and cause damage.
- Handle the battery carefully. Do not expose the device to extreme heat, fire, or direct sunlight for prolonged periods, as this may cause the battery to explode or leak.
- Keep out of reach of children.
- Avoid direct eye exposure to the light at maximum brightness for extended periods.
12. Warranty & Support
TELESIN products are manufactured to the highest quality standards. For warranty information, technical support, or service inquiries, please refer to the official TELESIN website or contact your local distributor. Please retain your proof of purchase for warranty claims.
For the latest information and support, visit www.telesin.com.