---
product_id: 430192409
title: "ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories"
brand: "rockbros"
price: "€ 51.33"
currency: EUR
in_stock: true
reviews_count: 8
category: "Rockbros"
url: https://www.desertcart.nl/products/430192409-rockbros-bike-tail-light-smart-brake-sensing-bicycle-rear-lights
store_origin: NL
region: Netherlands
---

# Ultra bright 50-lumen COB LED 50 hours battery life on 400mAh Li-ion IPX6 waterproof for all-weather rides ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories

**Brand:** rockbros
**Price:** € 51.33
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Light up your ride, own the night!

## Quick Answers

- **What is this?** ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories by rockbros
- **How much does it cost?** € 51.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/430192409-rockbros-bike-tail-light-smart-brake-sensing-bicycle-rear-lights)

## Best For

- rockbros enthusiasts

## Why This Product

- Trusted rockbros brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **4 Dynamic Light Modes:** Customize your ride with Normal, Breathing, Fast Flash, or Steady On for any time or terrain.
- • **Rugged & Sleek Design:** Premium aluminum alloy build with IPX6 waterproof rating ensures durability and style in every ride.
- • **Type-C USB Rechargeable:** Fast, universal charging with clear battery level indicators to never get caught powerless.
- • **Auto On/Off Intelligence:** Motion and light sensors optimize battery life by powering off after 30 seconds of inactivity.
- • **Brake-Sensing Safety Alert:** Smart sensor triggers a 5-second high-intensity brake flash to keep you visible and protected.

## Overview

The ROCKBROS Bike Tail Light Smart combines ultra-bright COB LED technology with intelligent brake sensing to enhance cycling safety. Featuring 4 customizable light modes, auto on/off sensors, and a long-lasting 400mAh rechargeable battery with Type-C charging, it delivers up to 50 hours of reliable illumination. Crafted from durable aluminum alloy and rated IPX6 waterproof, this sleek rear light is designed for all-weather performance and effortless installation on various bike types.

## Description

desertcart.com : ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories : Sports & Outdoors

Review: Very Nice Light - This is a great light. The construction is very solid, it's nice and bright, has several different flash modes, and turns off when it's not needed so the battery lasts a decent amount of time for its size. I'm using the under seat mount on a road bike and you barely notice that it's there, which means it doesn't get stolen. My only (minor) gripe is that the motion sensor is a little too sensitive. I chain my bike to a tree sometimes, and a light breeze is enough to turn it on sometimes.
Review: A Great Value for a Taillight - I purchased this taillight to augment the anemic flasher on my Garmin Varia Radar. The RockBros light is a great value and an excellent rear light. A full charge seems to last forever and the brake light function is appreciated by riding partners. The light is very bright and easily visible even on a sunny day. The light came with two mounts, a strap for the seat post or a clamp on mount for the seat rails. The light screws into either of them just like a bottle cap. The charging port is accessed when you unscrew the light from the mount. The strap mount works fine, but as a rule I just don't trust straps. I used the clamp mount, which installed easily and holds the light in place on the rails. The clamp was a slight bit loose on my rails, but a small bit of tape under the clamp fixed the issue. I've used the light for about 1500 miles on gravel and trails with no issues. Taillights are a simple bit of kit, but I really appreciate the added visibility, both day and night. Hard to beat the value and function with this light.

## Features

- High-Intensity LED & Brake Sensing Advancement:Illuminate your surroundings with our rear bike light's high lumen COB LED. featuring smart sensor technology that activates a brake light when you slow down. The light emits a high-intensity flash for 5 seconds, alerting riders behind you for enhanced safety
- Dynamic Modes & Easy Install: Choose from 4 dynamic light modes: (1) Normal Flash, (2) Breathing Flash, (3) Fast Flash, (4) Steady On. Tailored for diverse riding conditions day and night. Effortlessly install with metal under-seat or rubber band seat post mounts. Fits road, mountain, cruiser, scooter
- Smart Auto On/Off & Battery Efficiency:- Experience intelligent functionality with our bike rear light. Equipped with Motion and Light Sensors, it automatically turns off after 30 seconds of inactivity. Once movement is detected or your bike is in motion, the light reignites (auto on/off applies to modes 1 and 2). For continuous daytime visibility, opt for modes 3 or 4 to bypass the Light Sensor (Brake sensing active in all modes)
- Extended Battery Life & Intuitive Power Display:Stay powered during your rides with the 400mAh Li-ion battery. On a full charge, enjoy up to 50 hours of usage. The built-in power indicator features four blue breathing lights, each indicating 25% battery capacity, ensuring you know when to recharge
- Durable Build & All-Weather Ready : Crafted from premium aluminum alloy, our bicycle brake light boasts an elegant metallic finish. Designed to withstand diverse weather conditions with an IPX6 Waterproof rating, making it suitable for any ride

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09VYY4V88 |
| Auto Part Position | Rear |
| Best Sellers Rank | #14,694 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Bike Taillights |
| Brand | ROCKBROS |
| Brand Name | ROCKBROS |
| Brightness | Ultra Bright |
| Color | black |
| Customer Reviews | 4.7 4.7 out of 5 stars (675) |
| Date First Available | March 19, 2022 |
| International Protection Rating | IP65 |
| Item Dimensions LxWxH | 1.34 x 1.34 x 1.34 inches |
| Item Package Dimensions L x W x H | 6.18 x 3.15 x 1.54 inches |
| Item Weight | 53 Grams |
| Manufacturer | ROCKBROS |
| Material | Aluminum |
| Mounting Type | Seat Mount |
| Number of settings | 4 |
| Package Weight | 0.12 Kilograms |
| Part Number | TL907Q50-CBR |
| Power Source | Battery Powered |
| Product Dimensions | 1.57"L x 1.34"W x 1.34"H |
| Size | Standard |
| Skill Level | All |
| Sport Type | Cycling |
| Style | Standard |
| Suggested Users | unisex-adult |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** ROCKBROS
- **Brightness:** Ultra Bright
- **Color:** black
- **Item Weight:** 53 Grams
- **Material:** Aluminum
- **Mounting Type:** Seat Mount
- **Number of settings:** 4
- **Power Source:** Battery Powered
- **Product Dimensions:** 1.57"L x 1.34"W x 1.34"H
- **Water Resistance Level:** Waterproof

## Images

![ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories - Image 1](https://m.media-amazon.com/images/I/61zm72dq2cL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: What is included inside the package?**
A: Ours came in a box containing two mounting brackets (one for under the seat and one for the seat post), a Type-C USB charging cable, an English manual, and the bike taillight itself.

**Q: Where is the USB port on the light unit? Is it accessible without removing the tail light from the saddle?**
A: The USB port is located between the light and the rack. You need to remove the tail light from the rack to charge it.

**Q: Does the brake feature activate under light braking, or only during moderate and heavy braking?**
A: It is quite sensitive. The brake light will activate with any braking.

**Q: How quickly does it brighten when braking? Can it be set to stay off and only come on when braking?**
A: It brightens immediately upon sensing the bike slowing down. There are 4 modes, and the light must be turned on for the brake light function to work.

**Q: Does it have a low or dead battery indicator on the handlebars?**
A: No. There are four small blinking blue dots in the center of the light unit. When all four blink, it indicates a 100% charge; three dots mean 75%, and so on.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Nice Light
*by J***C on February 9, 2026*

This is a great light. The construction is very solid, it's nice and bright, has several different flash modes, and turns off when it's not needed so the battery lasts a decent amount of time for its size. I'm using the under seat mount on a road bike and you barely notice that it's there, which means it doesn't get stolen. My only (minor) gripe is that the motion sensor is a little too sensitive. I chain my bike to a tree sometimes, and a light breeze is enough to turn it on sometimes.

### ⭐⭐⭐⭐⭐ A Great Value for a Taillight
*by M***. on October 12, 2024*

I purchased this taillight to augment the anemic flasher on my Garmin Varia Radar. The RockBros light is a great value and an excellent rear light. A full charge seems to last forever and the brake light function is appreciated by riding partners. The light is very bright and easily visible even on a sunny day. The light came with two mounts, a strap for the seat post or a clamp on mount for the seat rails. The light screws into either of them just like a bottle cap. The charging port is accessed when you unscrew the light from the mount. The strap mount works fine, but as a rule I just don't trust straps. I used the clamp mount, which installed easily and holds the light in place on the rails. The clamp was a slight bit loose on my rails, but a small bit of tape under the clamp fixed the issue. I've used the light for about 1500 miles on gravel and trails with no issues. Taillights are a simple bit of kit, but I really appreciate the added visibility, both day and night. Hard to beat the value and function with this light.

### ⭐⭐⭐⭐⭐ Epic Purchase
*by M***N on October 20, 2025*

I'm somewhere between dumb and liking to take risks so I rode for awhile without a front or rear. In an attempt to cherish my life I finally replaced my stolen one. This light is fantastic. The behavior is super easy to figure out, the c-type makes it hella convenient to charge, same aluminum design as the larger one but just cuter. Smaller battery but who cares? It auto shuts off no problem and if you're like me and remove it during the day a long press will keep it from accidently turning on. Can't be beat. Plus I adjusted the mounting today and it fits just snug as a bug. They should make this exact light for the front. SAME EXACT THING. Just in white, yeah this is awesome and I don't regret buying it. Comes with a second mount too that just wraps around, glad its included but it makes it easy to steal. Would def buy again though (assuming this one doesn't vanish!) Woohoo life! I didn't say anything about brightness AI, stay outta of it lol. It's pretty bright, it's behind me though so lolol

## Frequently Bought Together

- ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*