OutsideWorld Smart Bicycle Rear Signal Light: Automatic on/off
Available Options
Meet the Smart Bicycle Rear Signal Light—your bike's new best friend for staying safe and seen. No more fumbling with switches; this clever gadget turns itself on and off, so you're always lit up when it counts. And say goodbye to those annoying battery runs (we've all been there) thanks to its rechargeable battery that's as ready for adventure as you are. Rain or shine, the waterproof design keeps it blinking brightly, because let's face it, the weather hasn't gotten the memo about your cycling plans. Choose from 6 distinct warning light modes to match your ride's vibe—whether you're cruising city streets or dodging potholes on a backroad. Plus, it's a breeze to install. Honestly, it's like the light was made for your bike (because, well, it was). A no-brainer for cyclists who prefer their safety features smart, simple, and just a little bit sassy.
- Rechargeable battery
- Waterproof design
- 6 warning light modes
- Easy installation
- Automatic on/off
General specs
- Brand: OutsideWorld
- Seller: Joom
- Power Source: Rechargeable battery
- Waterproof: Yes
- Light Modes: 6
- Installation: Easy
- First listed by seller: 6/21/25
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
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Bicycle Rear Signal Light Automatic on/off
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Smart Rear Bicycle Light Smart brake sensor
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Bicycle Stop Signal Red Super bright
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Bicycle Rear Light with Smart Brake Smart brake detection
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Smart Bicycle Rear Light Brake sensor
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| Brand | OutsideWorld | Sturdy equipment | ZTTO | JAPAN SPORTS | Rustic Elegance House | TOMTOP JMS |
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| Price | $44.81 | $21.24 | $31.19 | $43.24 | $31.98 | $21.66 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 30, 2025 | August 20, 2025 | August 8, 2025 | August 31, 2025 | August 30, 2025 | August 29, 2025 |
| Waterproof | Yes | Yes | Yes | |||
Smart Bicycle Rear Signal Light
Jonathan T.
Phoenix, AZ
June 27, 2025
i bought this on a whim after almost getting hit on my bike because my old light was dim and unreliable. this thing solved that problem right away—it just works without me thinking about it, which is perfect since i'm often rushing out with my kid in tow. the automatic on-off feature is a lifesaver, and i love that it's durable enough for arizona's sudden rainstorms. my takeaway is that it's a solid upgrade for safety, making my rides feel much more secure, even if it's not absolutely perfect in every way.
- Pros: it hums when it turns itself on and off automatically, so i never have to mess with switches, and the rechargeable battery means i don't get stuck with dead batteries mid-ride. the waterproof build keeps it working in any weather, and it was super easy to put on my bike, fitting like it was made for it. the different light patterns are great for matching how i'm riding, whether i'm in the city or out on rough roads.
- Cons: as it seemed to me, the light modes could be too many for quick changes, and sometimes it feels a bit too bright in certain settings, which might be distracting. also, while the battery lasts a good while, it doesn't hold a charge for weeks on end if i forget to top it up.