ROCKBROS Q0 Qzero Bicycle Taillight with Smart Auto High Brightness Brake Sensing: Automatically highlights when braking with built-in acceleration sensor
For the urban commuter or evening rider, this bike taillight is your silent partner in safety. It's not just about being seen; it's about smart visibility that adapts to your ride. The built-in acceleration sensor flashes brighter the moment you brake, giving drivers behind you an extra split-second to react. You'll notice the difference on busy streets where quick stops are common.
Set it and forget it with auto-on functionality. The light intelligently detects low ambient light, so it turns on as dusk falls without you fumbling for a switch. After 30 seconds of inactivity, it goes to sleep to save battery, then vibrates to wake up when you start moving again. With up to 63 hours of battery life and USB-C charging, it keeps you visible through long rides and daily commutes. Mount it easily with the included saddle bracket and cable ties for a secure, waterproof fit that handles rain and bumps.
Features
- Intelligent ambient light detection for automatic on/off
- Sleep mode for 30 seconds then vibrates to wake up
- Waterproof design for durability
- USB Type-C charging with 5V 2A input
- Long battery life up to 63 hours
- Automatically highlights when braking with built-in acceleration sensor
General specs
- Brand: ROCKBROS
- Model: Q0 Qzero
- Seller: Banggood
- ID: 2029447
- Note: Color may vary slightly due to monitor differences, Allow 0.39-0.79 inch measurement deviation
- Brand: ROCKBROS
- Model: Q0, Qzero
- Features: Built-in acceleration sensor with automatic brake highlighting, Sleep mode with 30-second inactivity timer and vibration wake-up, Intelligent ambient light detection for automatic activation
- Lamp beads: Red Light
- Battery Life: 8-63 hours
- Battery Type: 3.7V 250mAh Polymer Battery
- Lens Material: PC
- Charging input: 5V 2A USB Type-C
- Product Weight: 0.049 lbs
- Shell material: PC
- Strap Material: Silicone
- Bracket Material: ABS
- Package Contents: Tail Light, Saddle Bracket, Seat Post Bracket, 4 Cable Ties, 2 Ties, Charging Cable
- First listed by seller: 2/23/26
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Banggood
Shipping options
United States
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| Brand | ROCKBROS | OFFBONDAGE | ROCKBROS | CYCLAMI | ||
| Model | Q0, Qzero | ATS-Q6 | CY200 | |||
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| Price | $11.95 | $16.93 | $13.94 | $11.95 | $11.95 | $13.67 |
| Seller | Banggood | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | Mar 11, 2026 | Mar 12, 2026 | Mar 12, 2026 | Mar 12, 2026 | Mar 11, 2026 | Mar 7, 2026 |
| Features | Built-in acceleration sensor with automatic brake highlighting, Sleep mode with 30-second inactivity timer and vibration wake-up, Intelligent ambient light detection for automatic activation | Dual Bracket Design, Lightweight and Portable, Brake Sensing, Intelligent Start Stop, 13 Light Modes, IPX6 Waterproof Rating, Day Night Light Sensing, Adjustable Brightness, Gear Memory Function | Smart brake sensing technology, Ultra bright LED light for enhanced visibility, Easy to install and remove, USB rechargeable for convenience, Water resistant for all weather use | Intelligent Light Control, Brake Sensing Technology, Back Saddle Flexibility, Brilliant LED Brightness, Precise Battery Indicator | Light sensor (ambient light darker = stronger light), Shock sensor (auto-on when riding, auto-off after 3 minutes if forgotten), Power save aurora mode (2 hours continuous use), Power saving mode (6 hours release), Safety (no glare, accident prevention), Cutoff line design (German StVZO bicycle headlight authenticate), USB charging, Easy to install anti-fall protection | |
| Battery Type | 3.7V 250mAh Polymer Battery | Rechargeable Lithium Battery | Built In Polymer Battery | |||
| Material | ABS PC | ABS PC | ABS PC | |||
| Charging Method | TYPE C | USB | Type C USB Charging | |||
| Package Includes | 1 x Tail Light, 1 x Charging Cable, 1 x Mounting Bracket, 4 x Cable Tie, 1 x User Manual | 1 x Tail Light, 3 x Nylon Ties, 2 x Rubber Bands, 1 x Charging Cable | 1 x Bicycle Taillight, 1 x Charging Cable, 1 x Manual | 1 x Light, 1 x USB Cable | ||
| Battery Capacity | 500 mAh | 400 mAh | 600mAh | |||
| Waterproof Rating | IPX6 | IPX7 | IPX6 | |||
