Quick Summary
The ROCKBROS magnetic bike tail light is a USB-C rechargeable rear light with seven lighting modes, a brake sensor and an IPX6 rating. Its magnetic attachment is intended for tool-free installation; check that the mount suits your bike and the position where you plan to use it.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and part number | ROCKBROS, part number 24120009001. |
| Configuration | Black; listed as one item. |
| Lighting modes | Single flash, double flash, strobe, water drop flash, breathing flash, back-and-forth flash and steady-on. |
| Brake sensor | The listing describes a high-intensity flash lasting 1.5 seconds when speed drops. |
| Charging and runtime | USB-C rechargeable. The stated runtime is up to 36 hours in single-flash mode; runtime for other modes is not specified. |
| Protection rating | IPX6. Check whether this rating suits your intended riding conditions; it is not a claim of protection in every circumstance. |
| Listed visual distance | Up to 656 ft (200 m), as stated in the listing. Actual visibility can vary with conditions. |
Key Features Explained
The light has automatic and manual operation. In automatic mode, it is described as switching in response to ambient light, sleeping after the bike is parked for two minutes and restarting when it senses vibration. The listing says it does not sleep in manual mode. The brake-sensor flash is a separate described function.
A red indicator is described as flashing when the battery level reaches 30% and 10%. These alerts can prompt a charge check before setting out.
Compatibility, Size and Fit
The magnetic attachment is the main fit consideration. Check that the intended mounting surface and position work with this design. Dimensions and compatibility with specific bike models are not provided.
What to Compare Before Buying
- Check the intended mounting point and position for a suitable fit.
- Consider whether the seven listed modes and automatic or manual operation match your preferences.
- Compare the up-to-36-hour figure with your expected use, noting that it applies to single-flash mode only.
- Confirm whether the selected configuration includes a USB-C cable or any mounting accessories.
Before You Decide
Check the mounting fit, the operating mode you plan to use and which charging or mounting accessories are included. The stated maximum runtime applies to single-flash mode, and the IPX6 rating should not be treated as a guarantee for every condition.
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