Introduction
The WSDCAM Smart Bike Light is an innovative 5-in-1 device designed to enhance cycling safety and convenience. It integrates an electric bike horn, an anti-theft vibration alarm, a bright rear bike light, dynamic bike turn signals, and an automatic brake light into a single compact unit. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

Image: The WSDCAM Smart Bike Light, showing the main tail light unit and the oval remote control.
Package Contents
Please verify that all items are present in your package:
- Bike Tail Light Alarm
- Wireless Remote Control
- Tail Light Mount
- Remote Mount (silicone bracket)
- Hex cap bolts / Hex nuts / Hex key
- No-slip mats
- USB-C Charging Cable
Setup
1. Charging the Device
Before first use, fully charge the WSDCAM Smart Bike Light. Use the provided USB-C cable to connect the tail light to a power source (e.g., computer USB port, wall adapter). The charging indicator will show progress.

Image: The tail light connected via USB-C for charging, with an illustration of the charging level indicator showing 25%, 50%, 75%, and 100% charge.
2. Mounting the Tail Light
Attach the tail light mount to your bike's seat post. The tail light bracket is suitable for bars between 0.98-1.38 inches (25-35mm) in diameter. Secure the tail light unit onto the mounted bracket.

Image: Close-up of the tail light mounting bracket, showing its adjustable diameter for different seat post sizes.
3. Mounting the Wireless Remote
The new model remote comes with a silicone bracket for easy clamping to handlebars with a diameter of 0.93-1.26 inches (23.5-32mm). Position the remote within easy reach of your thumb for safe operation while riding.

Image: The oval remote control and its universal silicone bracket designed for bike handlebars, highlighting the various buttons for different functions.
Operating Instructions
Power On/Off and Smart Auto Function
The tail light features smart auto ON/OFF functionality. In Slow Flashing and Breathing modes, the light will automatically shut off after 30 seconds of inactivity in dark environments and light up when motion is detected. In bright outdoor environments, it will automatically shut off to conserve power. For daytime use, select Fast Blinking or Steady Light modes, as these do not utilize the smart function.

Image: Diagram illustrating the motion sensor and light sensor, showing how the light auto-shuts off in dark environments after 30s of inactivity, auto-lights up when motion is detected in dark environments, and auto-shuts off in bright environments.
Light Modes
The tail light offers 6 distinct light modes, easily selected using the remote control:
- Slow Flashing (Red slow flashing light)
- Breathing (Red breathing light)
- Fast Blinking (Red fast blinking light)
- Steady Light (Red steady light)
- Emergency Light (Yellow flashing light)
- OFF

Image: Visual representation of the six tail light modes, including Slow Flashing, Breathing, Blinking, Steady Light, and Emergency Light, shown on the tail light unit.
Turn Signals
To activate turn signals, press the 'R' (Right) or 'L' (Left) button on the remote control. The corresponding turn signal lights will flash with an audible clicking sound, alerting other road users to your intended direction.

Image: The tail light demonstrating left and right turn signals with clicking sounds, and the smart brake function illuminating the light when braking.
Smart Brake Light
Equipped with a built-in G-sensor, the rear light automatically highlights for 2 seconds when you brake, effectively alerting drivers behind you and helping to prevent rear-end collisions. This function works in Slow Flashing, Breathing, Fast Blinking, and Steady Light modes.
Bike Horn Function
The integrated electric bicycle horn produces a 110-decibel sound when activated via the remote, ensuring pedestrians and drivers are aware of your presence. Choose from 3 distinct horn sounds: electric car horn, standard horn, or birdcall sound.
Anti-Theft Vibration Alarm
The anti-theft alarm is triggered by vibration, providing an additional layer of security for your bike when parked outdoors. It features 7 adjustable sensitivity levels, allowing you to customize it from a gentle touch to a stronger impact. To arm the alarm, press the lock button on the remote. To disarm, press the unlock button.

Image: The tail light unit with an overlay indicating the 110dB alarm function and its vibration-triggered activation.
Maintenance
To ensure the longevity and optimal performance of your WSDCAM Smart Bike Light, follow these maintenance guidelines:
- Charging: Recharge the device regularly, especially after extended periods of use or if the low battery indicator is active. A full charge takes approximately 6 hours and can provide up to 70 hours of work time on fast blinking mode.
- Cleaning: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Water Resistance: The device is IP65 waterproof, meaning it is protected against dust and low-pressure water jets. While it can withstand rain, avoid submerging it in water.
- Storage: Store the device in a cool, dry place when not in use. If storing for a long period, ensure it is partially charged to preserve battery health.

Image: The WSDCAM Smart Bike Light and its remote, shown with water droplets, emphasizing its IP65 waterproof rating.
Troubleshooting
If you encounter issues with your WSDCAM Smart Bike Light, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light not turning on/off or not responding to remote. | Low battery; remote not paired; interference; remote out of range. | Charge the tail light. Ensure remote is within 98-196 ft (30-60m) range. Re-pair the remote if necessary (refer to pairing instructions, usually involves holding a button on both devices). |
| Alarm not activating or too sensitive/not sensitive enough. | Sensitivity setting incorrect. | Adjust the alarm sensitivity level (7 levels available) via the remote control. |
| Smart auto ON/OFF not working as expected. | Light mode not compatible with smart function; bright environment. | Ensure the light is in Slow Flashing or Breathing mode for smart functionality. In bright conditions, the light will auto-shut off to save power. |
| Turn signals or horn not producing sound. | Volume setting; internal issue. | Check if the horn sound is selected. Ensure the device is not muted. If the issue persists, contact customer support. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | KS-SF31 & WL02C |
| Brightness | Up to 160 lumens |
| Light Modes | 6 (Slow Flashing, Breathing, Fast Blinking, Steady Light, Emergency Light, OFF) |
| Horn Volume | 110 dB |
| Alarm Sensitivity | 7 adjustable levels |
| Water Resistance | IP65 |
| Power Source | USB-C Rechargeable Battery |
| Work Time (Fast Blinking) | Up to 70 hours |
| Remote Wireless Range | Approx. 98-196 ft (30-60m) |
| Material | Plastic |
| Item Weight | 0.26 Kilograms |
Warranty and Support
The WSDCAM Smart Bike Light comes with a 1-Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.
For technical support, warranty claims, or any questions regarding your product, please contact WSDCAM customer service through the retailer's platform or visit the official WSDCAM store online. Please have your purchase receipt and product model information ready when contacting support.
Visit the WSDCAM Store for more information and products.




