ROCKBROS R5 Co-Frequency Bike Tail Light Cycling Lamp Rear Brake Light,Brake/Vibration/Photosensitive Sensing Sync 4 Light Modes 400mAh Waterproof Adjustable Cycling Taillight Night Ride
ROCKBROS R5 Co-Frequency Bike Tail Light Cycling Lamp Rear Brake Light,Brake/Vibration/Photosensitive Sensing Sync 4 Light Modes 400mAh Waterproof Adjustable Cycling Taillight Night Ride
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ROCKBROS R5 Co-Frequency Bike Tail Light Cycling Lamp Rear Brake Light,Brake/Vibration/Photosensitive Sensing Sync 4 Light Modes 400mAh Waterproof Adjustable Cycling Taillight Night Ride

4 stars out of 1 review
(4.0)|
1 rating

Key item features

  • Summon Friends,Synced Breathing-Double-click to enter sync mode, automatically matching the same frequency breathing light with friends who have R-series taillights when riding close to each other.Sync signal range O-5Om; in sync mode, indicator changes from blue to green (R4 has no indicator), unlimited taillights can sync, ideal for group rides.
  • Brake Sensing for a Safety Boost During Night Rides-When braking or slowing down during cycling, the tail light automatically brightens and lasts for 3 seconds, conveying deceleration information to the rear, enhancing warning visibility.Equipped with a high-precision acceleration sensor and deep algorithm to quickly detect various braking intensities (R1 model lacks brake sensing)
  • Three-level Adjustable Brightness-Long press taillight in shutdown to adjust brightness to low, medium, or high for different environments.Default setting is medium brightness; different levels affect battery life.
  • Stationary Sleep;Vibration Auto-start-In Smart Mode,the tail light goes into sleep mode after 30 second of inactivity and lights up automatically upon detecting vibrations, eliminating the need for frequent manual light control.R3/R5 fast flash, breathing light are in smart mode;R4 red fast flash, red high-frequency flash, breathing light are in smart mode; R1 lacks a smart mode.
  • Day/Night Sensing-Lights Extinguish in Bright Conditions and Illuminate in Low Light In smart mode, the light sensor ensures automatic illumination in low light and deactivation in bright conditions, allowing for hands-free operation in tunnels or caves without compromising brake light functionality
  • Basic Model with Seven-color Breathing Light-Seven-color breathing light flashes in breathing light mode
  • Built-in lithium Battery Convenient Type-C Charging-Comes with USB-Type-C charging cable, compatible with various devices.Charging options:5V adapter,computer USB port,mobile power bank
  • Seat bow/Seatpost Two Installation Options-Equipped with two installation brackets for flexible placement
  • Dustproof and Rainproof-IPX6 waterproof design, unaffected by rain or harsh weather,no need to remove the taillight during car washing,providing convenience
Current price is $26.99
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  • Free 30-day returns
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Columbus, 43215
Arrives between Apr 24 - Apr 28
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Sold and shipped by ROCKBROS USA Store
4.5966386554621845 stars out of 5, based on 119 seller reviews(4.6)
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Showing 1-1 of 1 review

Jan 15, 2026
JayT
Item details
Color: R4
Sold and shipped byROCKBROS USA Store
4 out of 5 stars review

Verified Purchase

Good: but see photo of actual instructions

The instructions on line do not correctly explain the functions/light modes. Night mode: Light sensing operates when moving. Only the 3 night modes are “intelligent” and turn off after 30 seconds idle. “Breathing” mode is really a rapid flash. “RBG” Breathing” alternates 3 light colors and works as expected. Day mode: (“non-intelligent mode” meaning light stays on even when idle for 30 seconds) “Strobe” is all 3 colors, not just red as expected. “Steady On” operates as expected.

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