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
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 RideROCKBROS R5 Co Frequency Bike Tail Light Cycling Lamp Rear Brake Light Brake Vibration Photosensitive Sensing Sync 4 Light Modes 400mAh Waterproof AdROCKBROS R7 Co Frequency Bike Tail Light Cycling Lamp Rear Brake Light Multifunctional Synchronized 12 Lighting Modes Brake Sensing Sync Mode Auto SwROCKBROS R4 Co Frequency Bike Tail Light Cycling Lamp Rear Brake Light Brake Vibration Photosensitive Sensing Sync 5 Light Modes 260mAh Waterproof AdROCKBROS R1 Co Frequency Bike Tail Light Cycling Lamp Rear Brake Light Breathing Light 7 Color 5 Sync Light Modes 300mAh Waterproof Adjustable CyclinROCKBROS R3 Co Frequency Bike Tail Light Cycling Lamp Rear Brake Light Brake Vibration Sensing 4 Light Modes 300mAh Waterproof Adjustable Cycling Tai
Actual Color:R5

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
Price when purchased online
  • Free shipping
  • Free 30-day returns
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Pro Bicycle Assembly

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

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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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