Product Overview
The iGPSPORT TL50 Smart Bike Tail Light is designed to enhance cycling safety and convenience with its intelligent features and robust design. This manual provides essential information for proper setup, operation, and maintenance of your device.

Figure 1: iGPSPORT TL50 Smart Bike Tail Light, front view.
Setup
1. What's in the Box
- 1 x TL50 Bike Back Light
- 1 x M30 Seat rail bracket
- 1 x Hexagon wrench
- 1 x User Manual
- 1 x Standard Type C charging cable
2. Mounting the Tail Light
The TL50 offers versatile mounting options to suit most bike models.
- Seat Rail Mount: Use the provided M30 Seat rail bracket and hexagon wrench to securely attach the tail light directly under your bike's saddle. This method ensures a stable and high-visibility position.
- Seat Post Strap (Optional): An alternative strap mount is included for attaching the light to the seat post. This method is suitable if the saddle mount is not preferred or compatible with your saddle type.

Figure 2: Illustration of the TL50 tail light mounting process on a bike saddle.
3. Charging the Device
The TL50 is equipped with a standard Type C charging port.
- Locate the rubber gasket covering the USB-C port on the device.
- Gently peel back the gasket and insert the provided Type C charging cable.
- Connect the other end of the cable to a compatible USB power source.
- A green indicator light will show the battery level.
Operating Instructions
1. Power On/Off and Mode Selection
- Power On/Off: Long press the power button to turn the device on or off.
- Mode Selection: Short press the power button to cycle through the 6 available lighting modes:
- High Steady
- Low Steady
- Day Flash
- Night Flash
- Custom Mode
- Light Wheel Mode

Figure 3: The TL50 tail light showcasing its various lighting modes.
2. Smart Features
- Brake Warning: The tail light automatically illuminates brightly when braking, alerting vehicles and pedestrians behind you.
- Parking Warning: When connected to an iGPSPORT bike computer, the light flashes regularly during pauses to enhance safety.
- Auto Sleep/Wake Up: The light automatically enters sleep mode after several minutes of inactivity (customizable via iGPSPORT app) and wakes up upon movement.
- Intelligent Light Sensing: When connected to an iGPSPORT bike computer, the light automatically turns on in dark conditions (e.g., tunnels) and adjusts brightness based on ambient light.
- Front & Tail Lights Synchronized Control: Supports automatic connection and one-button synchronized on/off with select iGPSPORT front lights.
- Bike Computer & App Control: Connect to an iGPSPORT bike computer or the iGPSPORT app to check battery levels, switch light modes, and synchronize power on/off.
- SHIMANO Di2 Control: Turn the light on/off and switch modes via SHIMANO Di2 when connected to an iGPSPORT bike computer (supported on select models).

Figure 4: The TL50 tail light automatically brightening during braking for increased safety.

Figure 5: The TL50 tail light flashing to indicate a parking warning (requires iGPSPORT bike computer).

Figure 6: The TL50 tail light automatically entering sleep mode when idle and waking upon movement.

Figure 7: Multiple TL50 tail lights synchronizing their flash patterns for group rides.
Video 1: Official iGPSPORT TL50 Bike Taillight demonstration, showing various features and modes.
Maintenance
- Cleaning: Wipe the device with a soft, damp cloth to remove dirt and debris. Avoid using harsh chemicals or abrasive materials.
- Water Resistance: The TL50 has an IPX7 waterproof rating, meaning it can withstand immersion in water up to 1 meter for 30 minutes. Ensure the USB-C port cover is securely closed to maintain water resistance.
- Storage: Store the tail light in a cool, dry place when not in use. Avoid extreme temperatures.
- Battery Care: For optimal battery life, charge the device regularly and avoid fully depleting the battery for extended periods.
Troubleshooting
- Light not turning on: Ensure the device is fully charged. Long press the power button for several seconds.
- Light not changing modes: Short press the power button firmly. If connected to a bike computer or app, check settings there.
- Connectivity issues (Bluetooth/App): Ensure Bluetooth is enabled on your smartphone or bike computer. Restart both devices and try pairing again.
- Smart features not working: Verify that the TL50 is correctly paired with a compatible iGPSPORT bike computer or app, and that the specific features are enabled in the settings.
Specifications
| Feature | Detail |
|---|---|
| Brand | iGPSPORT |
| Model Name | Smart Bike Rear Light (TL50) |
| Material | Plastic |
| Power Source | Battery Powered |
| Water Resistance Level | IPX7 (Waterproof) |
| Item Weight | 23 Grams |
| Mounting Type | Seat Mount |
| Product Dimensions | 1.57"L x 0.71"W x 1.57"H |
| Number of Settings | 6 (Lighting Modes) |
| Brightness | 50 Lumens (Maximum) |
| Auto Part Position | Rear |
Warranty
The iGPSPORT TL50 Smart Bike Tail Light comes with a 1 Year 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.
Support
For further assistance, technical support, or warranty inquiries, please contact iGPSPORT customer service through their official website or the retailer where the product was purchased.
Visit the iGPSPORT Store on Amazon for more information and contact options.





