---
product_id: 624234337
title: "G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding"
brand: "g keni"
price: "171.37 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "G Keni"
url: https://www.desertcart.tn/products/624234337-g-keni-smart-brake-sensing-rear-bike-lights-auto-light
store_origin: TN
region: Tunisia
---

# 120 lumens ultra bright 50h USB-C rechargeable Smart brake alert G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding

**Brand:** g keni
**Price:** 171.37 DT
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Light up your ride, brake smarter, ride safer!

## Quick Answers

- **What is this?** G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding by g keni
- **How much does it cost?** 171.37 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/624234337-g-keni-smart-brake-sensing-rear-bike-lights-auto-light)

## Best For

- g keni enthusiasts

## Why This Product

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

## Key Features

- • **Brake-Savvy Safety:** Instant ultra-bright brake alert mode keeps you visible and protected in traffic.
- • **Adaptive Ride Modes:** Four versatile light modes with auto on/off sensor tailor visibility to your journey.
- • **Endurance Powerhouse:** USB-C rechargeable 400mAh battery delivers up to 50 hours of uninterrupted safety.
- • **Luminous Night Guardian:** 120 lumens COB LEDs shine up to 1000m, ensuring you dominate the night ride.
- • **Rugged Weatherproof Design:** IPX6 waterproof aluminum housing built to withstand rain, dust, and rough trails.

## Overview

The G Keni Smart Brake Sensing Rear Bike Light combines cutting-edge brake detection with ultra-bright 120 lumen COB LEDs visible up to 1000 meters. Featuring four customizable light modes and smart auto sensors, it adapts seamlessly to your riding conditions. Its durable IPX6 waterproof aluminum body and USB-C rechargeable 400mAh battery provide up to 50 hours of reliable, weatherproof illumination—perfect for commuters, road cyclists, and mountain bikers who demand safety and style on every ride.

## Description

desertcart.com : G Keni Smart Brake Sensing Bike Tail Light, Ultra Bright Rear Bike Light, USB C Rechargeable Waterproof Bike Lights for Night Riding with Auto Sensor for Road & Mountain Bikes : Sports & Outdoors

Review: Can I give it 6 stars?! - So, I love this light for some very specific reasons: 1) the build quality seems very good - aluminum body and bracket; 2) big enough to give out enough lumens and multi-mode lighting; 3) rechargeable battery; 4) most importantly - which is why I bought it - I wanted something that I could semi-permanently screw/mount to my bike rack so I didn't have to worry about losing it, having to take it on/off and it would be there whenever I needed it. I was about to purchase the Blue Lug KOMA from another online retailer (I had waited 3 months for it to come back in stock) but it is smaller, less bright, less lighting modes and a lot more money - $50 with shipping! After looking around I found this light and thought - hoped - that I could retro fit it to bolt to my rack and it worked great. I had to remove the mounting braket with two tiny screws....BUT that wasn't easy - they are small, easy to strip, and they were probably lock-tited on there....but I got them out and the bracket off. If I hadn't been able to get them out, I would have just had to use it like any other strap-mounted light - which would have been fine, but not why I chose this particular light. Then all I had to do was to drill a small hole through the aluminum mounting base, and attach it to the rack - which is why I bought this light - the METAL base - so I could drill through it and not deal with any plastic crap mounted light. Did it void any warranty? Probably yup. Do I care? Nope - it is mounted exactly where I want and how I needed it, at a fraction of the cost of the KOMA. I will probably buy one or two more to put on my other bikes. I can't speak to the long-term durability, battery life or anything else (other people have already reviewed that), but for the price and my specific needs, this is a 6-star buy. See the photos for details....
Review: Don't get run over! - Very solid, bright, lightweight, rechargeable with decent battery life and an excellent mounting system. Love it!

## Features

- SMART BRAKE ALERT: This smart bike tail light automatically switches to ultra bright mode for 5 seconds when braking to help alert riders and vehicles behind you. A reliable brake sensing bike light for road bikes, mountain bikes, and daily commuting
- ULTRA BRIGHT VISIBILITY: Featuring high brightness COB LEDs with up to 120 lumens output and visibility up to 1000m, this rear bike light helps improve visibility during night rides and low-light conditions. Ideal for bike lights for night riding and everyday cycling safety
- 4 LIGHT MODES & AUTO SENSOR: Choose from Flash, Breathing, Fast Flash, and Steady On modes to match different riding conditions. Built-in motion and light sensors automatically turn the bike rear light off after inactivity and back on when movement is detected
- USB-C RECHARGEABLE: Built-in 400mAh rechargeable battery delivers up to 50 hours runtime depending on brightness settings. This usb rechargeable bike light features adjustable brightness, fast USB-C charging, and a 4-level battery indicator display
- DURABLE & WATERPROOF: Made with a durable aluminum alloy housing and IPX6 waterproof protection, this waterproof bike light is built for rain, dust, rough roads, and daily use. Perfect for commuter bikes, road cycling, and mountain bike riding

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07W4PGHK7 |
| Auto Part Position | Rear |
| Best Sellers Rank | #40,345 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #55 in Bike Taillights |
| Brand | G Keni |
| Brand Name | G Keni |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 2,319 Reviews |
| International Protection Rating | IPX6 |
| Item Dimensions L x W x H | 1.57"L x 1.34"W x 1.34"H |
| Item Weight | 3 ounces |
| Light Output Maximum | 120 lumens |
| Manufacturer | K&K International Co.,LTD |
| Manufacturer Part Number | Q5 |
| Material | Aluminum, Plastic |
| Material Type | Aluminum, Plastic |
| Model Number | Q5 |
| Mounting Type | Seat Mount |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Number of settings | 4 |
| Power Source | Battery Powered |
| UPC | 730964003983 |
| Warranty Description | 1 Year |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** G Keni
- **Color:** Red
- **Item Weight:** 3 Ounces
- **Light Output Maximum:** 120 Lumens
- **Material:** Aluminum, Plastic
- **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

![G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding - Image 1](https://m.media-amazon.com/images/I/7106EjtMgML.jpg)
![G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding - Image 2](https://m.media-amazon.com/images/I/6117hWJj6WL.jpg)
![G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding - Image 3](https://m.media-amazon.com/images/I/71rC5eZepnL.jpg)
![G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding - Image 4](https://m.media-amazon.com/images/I/61ywvydLiwL.jpg)
![G Keni Smart Brake Sensing Rear Bike Lights, Auto Light Sensing Bike Tail Light, IPX6 Waterproof, Ultra Bright LED Taillights, Rechargeable Safety Road Back Bicycle Lights for Night Riding - Image 5](https://m.media-amazon.com/images/I/61S8cah3DBL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Can I give it 6 stars?!
*by P***O on November 4, 2024*

So, I love this light for some very specific reasons: 1) the build quality seems very good - aluminum body and bracket; 2) big enough to give out enough lumens and multi-mode lighting; 3) rechargeable battery; 4) most importantly - which is why I bought it - I wanted something that I could semi-permanently screw/mount to my bike rack so I didn't have to worry about losing it, having to take it on/off and it would be there whenever I needed it. I was about to purchase the Blue Lug KOMA from another online retailer (I had waited 3 months for it to come back in stock) but it is smaller, less bright, less lighting modes and a lot more money - $50 with shipping! After looking around I found this light and thought - hoped - that I could retro fit it to bolt to my rack and it worked great. I had to remove the mounting braket with two tiny screws....BUT that wasn't easy - they are small, easy to strip, and they were probably lock-tited on there....but I got them out and the bracket off. If I hadn't been able to get them out, I would have just had to use it like any other strap-mounted light - which would have been fine, but not why I chose this particular light. Then all I had to do was to drill a small hole through the aluminum mounting base, and attach it to the rack - which is why I bought this light - the METAL base - so I could drill through it and not deal with any plastic crap mounted light. Did it void any warranty? Probably yup. Do I care? Nope - it is mounted exactly where I want and how I needed it, at a fraction of the cost of the KOMA. I will probably buy one or two more to put on my other bikes. I can't speak to the long-term durability, battery life or anything else (other people have already reviewed that), but for the price and my specific needs, this is a 6-star buy. See the photos for details....

### ⭐⭐⭐⭐⭐ Don't get run over!
*by K***T on July 27, 2026*

Very solid, bright, lightweight, rechargeable with decent battery life and an excellent mounting system. Love it!

### ⭐⭐⭐⭐⭐ Set it and forget it
*by T***1 on August 16, 2026*

So nice to not have to think about this light. Braking is automatic and nice for group rides. Not easy to steal. I wish all my lights were like this with motion activation.

## Frequently Bought Together

- G Keni Smart Bike Tail Light, Brake Sensing Rear Lights, Auto On/Off, Waterproof, USB Rechargeable, Ultra Bright LED Warning Back Bicycle Flashlight, Cycling Safety Accessories
- TOWILD CL1200 Bike Lights for Night Riding,Compatible with Garmin/GoPro Mount,1200 Lumen Bright Bike Headlight,4000mAh Rechargeable Battery,Waterproof Bike Front Light for Commuter Cyclists

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-30*