Jiangnan A Intelligent Sensor Brake Lights: Automatic brake light activation
Available Options
In the crowded world of bike tech, safety gadgets are evolving fast. The Intelligent Sensor Brake Lights stand out with a clever twist: motion sensors that detect deceleration and automatically trigger the brake light. No fumbling for switches—just a clear signal to everyone behind you, reducing the risk of rear-end collisions in dim conditions.
Perfect for everything from gritty urban commutes to rugged mountain trails, these lights pack high-brightness LEDs that cut through the gloom. Built tough with weather-resistant materials, they laugh off rain, dust, and whatever else the road throws at them. Installation is a breeze on most frames, and their energy-sipping design means fewer battery changes. It's a no-brainer upgrade for cyclists who want to ride smarter and safer, day or night.
- Motion sensor technology
- High brightness LED illumination
- Weather-resistant durable design
- Easy installation and mounting
- Long battery life
- Automatic brake light activation
General specs
- Brand: Jiangnan A
- Seller: Joom
- Light Type: LED
- Sensor Type: Motion
- Mounting Type: Bicycle rear
- Weather Resistance: Yes
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
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Intelligent Sensor Brake Lights Smart sensor activation
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Rustic Elegance House SB Automatic brake sensor
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Bicycle Tail Rear Smart Brake Light with Vibration and LED Lighting Smart brake light activation
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Bicycle Rear Light with Smart Brake Smart brake detection
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| Brand | Jiangnan A | Smarrt home | Sturdy equipment | Rustic Elegance House | ROCKBROS | JAPAN SPORTS |
| Model | SB | |||||
| Color |
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| Rating |
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| Price | $22.53 | $21.56 | $21.15 | $14.37 | $51.15 | $43.05 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 19, 2025 | August 19, 2025 | August 20, 2025 | August 30, 2025 | August 28, 2025 | August 31, 2025 |
| Light Type | LED | LED | LED | |||
| Waterproof Rating | Waterproof | IPX6 | IPX6 | IPX6 | ||
Intelligent Sensor Brake Lights
Jonathan T.
San Antonio, TX
September 6, 2025
i bought this as a gift for my brother who loves biking, and most likely it's been a great choice. as a stay-at-home dad in san antonio, i wanted something reliable for his commutes and our family trips. how does it perform? it detects when he's slowing down and lights up automatically—no buttons to press, which is awesome for safety. is it durable? yeah, it's handled some rain and bumps just fine. battery life? way better than expected; he hasn't had to change it yet. would i recommend it? absolutely, it's a smart upgrade that makes riding safer. delivery was smooth too; the courier called ahead, which was nice.
- Pros: the motion detection works perfectly, automatically turning on the brake light when i slow down, which feels super intuitive and safe. the light is incredibly bright, making me visible even in low light, and it's built tough to handle rain and rough rides without any issues. setup was easy on my bike, and the battery lasts a long time, so i don't have to worry about changing it often.