Smart Brake Tail Lights
Compare supplier-described brake sensing, Type-C charging, mount options, runtime wording, and weather ratings before choosing a rear bike light.
ROCKBROS Q5 Q5 Smart Auto Brake Sensing Bicycle Taillight with Vibration Sensor Wake-up
Features
- Automatically turns on/off based on light intensity and motion
- IPX6 waterproof rating
- Type-C charging
- 400mAh Li-ion rechargeable battery
- 4 flash modes
- 20 hours run time
- Compact and lightweight design (approx. 0.12 lbs)
- Auto sleep mode for power saving
- Battery indicator flashes every 6 seconds
- Seat rail mounting
- Full 6061 aluminum alloy chassis
General specs
- Brand: ROCKBROS
- Model: Q5
- Seller: Banggood
- ID: 2031617
- Type: Smart Auto Brake Sensing Bicycle Taillight
- Model: ROCKBROS Q5
- Weight: 0.12 lbs
- Features: Vibration Sensor Wake-up, Automatically turn on/off based on light intensity and motion, Auto sleep mode for power saving, Seat rail mounting, 4 flash modes, 20 hours runtime, Type C charging, Battery indicator flashes every 6 seconds, Compact and lightweight design, IPX6 waterproof
- Material: Aluminum Alloy, 6061 Aluminium alloy
- Dimensions: 1.57 x 1.34 x 1.34 inches
- Light Modes: 4
- Battery Type: 400mAh Li-ion rechargeable
- Light Output: 60 Lumen
- Package Contents: 1 x Tail Light, 1 x Charging Cable
- Waterproof Rating: IPX6
- Charging interface: Type C
- Installation Method: Saddle, Seatpost
- First listed by seller: February 23, 2026
If you are interested in more details, you can find full information on the seller's page.
€16.19
Last price update: 5/9/26
Available to order
Price History for seller Banggood
Shipping options
Delivery to 
United States
United States
Available
For cyclists who ride at dawn, dusk, or in traffic, the ROCKBROS Q5 tail light is your silent guardian. It's not just about being seen—it's about staying focused on the road while the light handles safety.
This light wakes up with your bike's vibration and dims when you stop, so you never forget to turn it on. The motion sensor means it activates as you mount up, even in daylight if it's cloudy. You'll notice the battery indicator flashes subtly every 6 seconds, giving you confidence without distraction.
With IPX6 waterproofing and a 20-hour runtime, it withstands sudden rain and long commutes. The Type-C charging and lightweight 55g design make it easy to keep powered and mounted. Ride knowing you're visible, with less to manage.
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|---|---|---|---|---|---|---|
ROCKBROS Q5
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|
| Brand | ROCKBROS | CYCLAMI | WEST BIKING | ROCKBROS | GIYO | ROCKBROS |
| Model | Q5 | CY120 | 0701455 Basic A | WR05 | R3 | |
| Price | €16.19 | €11.93 | €39.00 | €10.22 | €15.34 | €14.49 |
| Seller | Banggood | Banggood | Joom | Banggood | Banggood | Banggood |
| Update | May 9, 2026 | May 9, 2026 | Sep 5, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 |
| Weight | 0.12 lbs | 0.06 lbs | 0.11 lbs | 26g (0.057 lbs) | 0.073 lbs | |
| Features | Vibration Sensor Wake-up, Automatically turn on/off based on light intensity and motion, Auto sleep mode for power saving, Seat rail mounting, 4 flash modes, 20 hours runtime, Type C charging, Battery indicator flashes every 6 seconds, Compact and lightweight design, IPX6 waterproof | Instant Activation, Vibration Wake Up, Energy Saving Mode, Multiple Light Modes, Waterproof Design | Smart Brake Sensing, High Visibility LEDs, Tool-Free Installation, Waterproof Design, Long Battery Life | Dual Bracket Design, Same Frequency Induction Brake Light, Smart Brake Light with Automatic Detection, Easy Installation, Wear and Tear Resistant, Versatile for All Bicycle Types | ||
| Material | Aluminum Alloy, 6061 Aluminium alloy | Carbon Fiber, PCB | ABS | Aluminum Alloy, Plastic Base | ||
| Dimensions | 1.57 x 1.34 x 1.34 inches | 1.5 inches x 1.16 inches | 2.36 x 2.09 x 1.50 inches | 1.18 x 1.34 x 1.34 inches | ||
| Waterproof Rating | IPX6 | Waterproof | IPX6 | |||
| Lighting Modes | Single Flash, Double Flash, Breathing Flash, Steady On, Running Lights, Spinning Wheels | Low, Mid, High, Low High Power Flash, Fast Flash, Breathable Light | 4 | |||
| Battery Capacity | 400mAh | 500mAH | 350mAh | |||
ROCKBROS Q5
€16.19
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