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.
CYCLAMI CY120 CY120 Smart Brake Bicycle Taillight with Auto Start/Stop
Features
- Auto brake sensing activation
- Vibration wake-up function
- IP65 waterproof design
- Multiple lighting modes
- Energy saving mode
- Type-C charging port
General specs
- Brand: CYCLAMI
- Model: CY120
- Seller: Banggood
- ID: 2047545
- Brand: CYCLAMI
- Model: CY120
- Weight: 0.06 lbs
- Voltage: 5V
- Features: Instant Activation, Vibration Wake Up, Energy Saving Mode, Multiple Light Modes, Waterproof Design
- Material: Carbon Fiber, PCB
- Dimensions: 1.5 inches x 1.16 inches
- Battery Life: 8-40 hours
- Charging Port: Type C
- Lighting Modes: Single Flash, Double Flash, Breathing Flash, Steady On, Running Lights, Spinning Wheels
- Battery Capacity: 400mAh
- Package Included: 1 x CY120 Bicycle Tail Light, 1 x Seat Bow Bracket Assembly, 1 x Seatpost Bracket Assembly, 1 x Type C Charging Cable
- Waterproof level: IP65
- First listed by seller: February 23, 2026
If you are interested in more details, you can find full information on the seller's page.
€11.93
Last price update: 5/9/26
Available to order
Price History for seller Banggood
Shipping options
Delivery to 
United States
United States
Available
For the urban commuter navigating busy streets or the evening rider on dimly lit paths, the CYCLAMI CY120 Smart Brake Bicycle Taillight is your reliable co-pilot. While most bike lights focus on visibility, this one adds a layer of intelligent safety that anticipates your needs.
The brake-sensing feature activates maximum brightness instantly when you slow down, alerting drivers behind you before they even notice your movement. In a real-world test, the vibration wake-up function proved invaluable after a brief stop at a café—it resumed flashing automatically as you pedaled away, no fumbling required. With six lighting modes, you can choose a steady glow for city rides or a dynamic pattern for extra attention on rural roads.
Its IP65 waterproof rating means rain won't interrupt your journey, and the energy-saving mode adjusts brightness based on ambient light to extend battery life up to 40 hours. Weighing just 27g, it mounts easily with included brackets, making safety seamless for every ride.
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| Brand | CYCLAMI | ROCKBROS | GIYO | ROCKBROS | ROCKBROS | |
| Model | CY120 | Q5 | Intelligent Induction Brake Warning Light | Q5 mini | Q1 MAX | |
| Price | €11.93 | €16.19 | €11.93 | €15.34 | €15.34 | €11.08 |
| Seller | Banggood | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 |
| Weight | 0.06 lbs | 0.12 lbs | 0.09 lbs | 26g (0.057 lbs) | 0.075 lbs | 0.066 lbs |
| Features | Instant Activation, Vibration Wake Up, Energy Saving Mode, Multiple Light Modes, Waterproof Design | 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 | Dual bracket design for easy installation, Smart tail light with brake sensing function, Compact and lightweight, Suitable for mountain bikes and road bikes, Enhances visibility for night cycling | High Brightness Safety Warning, Dual Brackets, Drop Wear Resistant, Auto and Manual Mode, Intelligent Brake Sensing, Light Sensing, Vibration Start/Stop, USB Charging, IPX6 Waterproof, Optical Lens, Battery Indicator with 4 Lights, Super Lightweight | ||
| Material | Carbon Fiber, PCB | Aluminum Alloy, 6061 Aluminium alloy | Aluminum Alloy | CNC Aluminum Alloy, Plastic | ||
| Dimensions | 1.5 inches x 1.16 inches | 1.57 x 1.34 x 1.34 inches | 2.05 x 2.09 x 1.50 inches | |||
| Battery Capacity | 400mAh | 500 mAh | 350mAh | 3.7V 250mAh | ||
| Light Modes | 4 | Constantly on, Flashing, Six modes, Three brightness modes | 6 | Slow Flash, Breathing Flash, Lightning Flash, Fast Flash, Steady On | ||
| Waterproof Rating | IPX6 | IPX6 | Waterproof | IPx6 | ||
CYCLAMI CY120 Auto brake sensing activation
€11.93
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