X-TIGER Smart Brake Sensing Bike Tail Light – IPX6 LED USB-C

X-TIGER Smart Brake Sensing Bicycle Tail Light – Stay Visible, Ride Confidently

The X-TIGER WD-1101 Bike Rear Light is a feature-packed cycling taillight engineered for riders who refuse to compromise on visibility or safety. With intelligent brake sensing, an ambient light sensor, 6 versatile lighting modes, and an IPX6 waterproof rating, this compact LED taillight keeps you clearly seen in any riding condition — day or night, rain or shine.

Made in Mainland China.

Key Features

• Auto Brake Sensing: When deceleration is detected, the taillight instantly illuminates at maximum brightness for 3 seconds — automatically alerting drivers and pedestrians behind you without any manual input.
• Smart Auto Mode & Manual Mode: In Auto mode, the light powers off after 30 seconds of inactivity and switches back on the moment movement resumes. Manual mode puts full control in your hands.
• Ambient Light Sensor: The built-in light sensor detects low-light conditions and turns the taillight on automatically. When surroundings brighten, the light turns off after 30 seconds — conserving battery effortlessly.
• 6 Lighting Modes: Always On · Fast Flashing · Slow Flashing · Rhythmic Flashing · Breathing Flashing · Energy-Saving Flashing — choose the mode that suits your ride and environment.
• Long-Lasting 420 mAh Battery: A built-in lithium-ion battery delivers up to 9 hours of runtime at maximum brightness. A single press in the off state shows remaining charge via the indicator light.
• USB-C Charging: Recharge using the included Type-C cable from any power bank, laptop, or USB adapter — quick, convenient, and universally compatible.
• IPX6 Waterproof: Rated IPX6, this taillight handles heavy rain, splashes, and wet roads without missing a beat.
• Easy Seatpost or Saddle Rail Mount: Includes both a saddle mounting bracket and an adjustable silicone strap, so installation takes seconds with no tools required.
• Lightweight Build: Only 0.1 kg — you won't even notice it's there until the driver behind you does.

Specifications

How to Use

1. Auto-Sensing Mode: Power on, then click the button once to activate auto-sensing mode.
2. Manual Mode: Power on, then long-press the button for 3 seconds to switch to manual mode.
3. Charging: Always use the included Type-C charging cable to avoid damage to the light.

Perfect For

Commuters, road cyclists, mountain bikers, and casual riders who want a reliable, intelligent taillight that works with them — not against them. Pair it with your other cycling gear for a complete visibility setup.

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Authoritative Cycling Safety Resource

For best practices on bicycle lighting and road visibility, refer to guidance from the National Highway Traffic Safety Administration (NHTSA). Additionally, the U.S. Consumer Product Safety Commission (CPSC) Bicycle Safety Center offers comprehensive resources on safe cycling equipment.

Learn more: Bicycle lighting

Frequently Asked Questions

Q: Does the X-TIGER WD-1101 taillight automatically brighten when I brake?

A: Yes! The smart brake sensing technology detects deceleration and immediately switches the taillight to maximum brightness for 3 seconds, making your braking clearly visible to anyone behind you — in both Auto and Manual modes.

Q: How long does the battery last on a single charge?

A: The built-in 420 mAh Li-ion battery provides up to 9 hours of continuous runtime at maximum brightness. In energy-saving or flashing modes, runtime will be significantly longer. You can check remaining battery level by pressing the button while the light is off.

Q: Is the X-TIGER bike tail light waterproof enough for heavy rain?

A: Absolutely. With an IPX6 waterproof rating, the light is designed to withstand powerful water jets and heavy rainfall, making it a dependable companion for all-weather riding.

Q: What bikes is this taillight compatible with?

A: The WD-1101 includes both a saddle mounting bracket and an adjustable silicone strap, making it compatible with virtually any road bike, mountain bike, commuter bike, or hybrid that has a standard seatpost or saddle rail.

Q: Can I charge it with any USB-C cable?

A: It is recommended to use the included Type-C charging cable to avoid potential damage to the light. Most standard USB-C cables should be compatible, but using the provided cable ensures the best and safest charging experience.