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Home > Night Riding Bicycle LED Light Systems > Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
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Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65
Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65

Bike Lights for Night Riding, USB Rechargeable Bicycle Light Waterproof IP65

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Product Description

🚲 Smart Alarm Turn Signal Taillight | All-in-One Cycling Safety System

The SF31 is a revolutionary multi-functional cycling taillight that integrates anti-theft alarm, brake sensing, turn signals, electronic bell, and smart lighting into one compact device. Designed for modern cyclists, it provides 360° protection and visibility.

📋 Basic Information
Model NO.
SF31
Certification
ISO9001
Application
Road, Mountain, Ordinary Bicycle
Color
Black
Usage
Caving, Night Ride, Daily, Hunt, Camping
Power Supply
Battery
Position
Rear Light
Type
LEDs
Max Brightness
93lm
Waterproof
IP65
Electric Bell
Yes
Anti-Theft Alarm
Yes
Brake Sensing
Yes
Standby Time
4~8 Months
Charging
USB Type C
Origin
China
📷 Product Description
Smart Bike Light Overview
Multi-functional Taillight
Safety Features
Lighting Modes
Smart Sensing
Waterproof Design
Turn Signal Function
Remote Control Features
Alarm System
USB Charging
🛠️ Installation Method
Installation Step 1
Installation Step 2
Bracket Mounting
Device Attachment
Installation Final
📏 Specification
Size Specs
Battery Specs
Technical Parameters
Component List
📦 Packing & Delivery
Packaging Detail
❓ Frequently Asked Questions
1. How long does the battery last on a full charge?
The device features a long standby time of approximately 4 to 8 months. The remote control battery is highly efficient and can last 3 to 5 years with average daily use.
2. Is the SF31 bike light waterproof?
Yes, it has an IP65 waterproof rating, making it resistant to rain and dust, which is ideal for outdoor night riding in various weather conditions.
3. Does the light automatically show a brake signal?
Yes, it includes a built-in brake sensing function. When you slow down or stop, the light will automatically intensify to alert vehicles behind you.
4. How does the anti-theft alarm work?
Once armed via the remote, the light will trigger a loud alarm if it detects vibration or movement of the bicycle, providing effective theft prevention.
5. What type of charging port does it use?
The SF31 uses a modern USB Type-C charging interface, allowing for fast and convenient charging through power banks, computers, or wall adapters.
6. How many lighting modes are available?
There are six different lighting modes to choose from, allowing you to adjust visibility based on your surroundings and battery preference.

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