---
product_id: 212567824
title: "G Keni Smart Rear Bike Tail Light, Auto on/off Brake Sensing Bicycle Lights, USB Rechargeable Bikes Tailights, IPX65 Waterproof Rears Lights for Bikes, High Intensity Rear Cycling Safety Accessories"
brand: "g keni"
price: "¥10176"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/212567824-g-keni-smart-rear-bike-tail-light-auto-on-off
store_origin: JP
region: Japan
---

# 4 Light Modes 50 Hours Battery Life Auto Brake Sensing G Keni Smart Rear Bike Tail Light, Auto on/off Brake Sensing Bicycle Lights, USB Rechargeable Bikes Tailights, IPX65 Waterproof Rears Lights for Bikes, High Intensity Rear Cycling Safety Accessories

**Brand:** g keni
**Price:** ¥10176
**Availability:** ✅ In Stock

## Summary

> Light Up Your Ride! 🚴‍♂️

## Quick Answers

- **What is this?** G Keni Smart Rear Bike Tail Light, Auto on/off Brake Sensing Bicycle Lights, USB Rechargeable Bikes Tailights, IPX65 Waterproof Rears Lights for Bikes, High Intensity Rear Cycling Safety Accessories by g keni
- **How much does it cost?** ¥10176 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/212567824-g-keni-smart-rear-bike-tail-light-auto-on-off)

## 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

- • **Easy Installation:** Mount it anywhere with versatile installation options.
- • **Smart & Efficient:** Auto on/off feature saves battery life while ensuring safety.
- • **Weatherproof Wonder:** IPX6 waterproof rating means no worries in any weather.
- • **Illuminate Your Ride:** Experience unparalleled visibility with high lumen COB LED technology.
- • **Customizable Brightness:** Adjust brightness to suit your riding conditions effortlessly.

## Overview

The G Keni Smart Rear Bike Tail Light is a cutting-edge safety accessory designed for cyclists. Featuring smart brake sensing technology, it automatically switches to high light mode when braking, ensuring maximum visibility. With four customizable light modes and an impressive 50-hour battery life, this USB rechargeable tail light is perfect for both day and night rides. Its durable aluminum alloy shell and IPX6 waterproof rating make it suitable for all weather conditions, while the easy installation options ensure you can mount it wherever you need. Enjoy peace of mind with a 12-month warranty and 24/7 customer support.

## Description

G Keni Smart Rear Bike Tail Light, Auto on/off Brake Sensing Bicycle Lights, USB Rechargeable Bikes Tailights, IPX65 Waterproof Rears Lights for Bikes, High Intensity Rear Cycling Safety Accessories

## Features

- [ SMART BRAKE SENSING & EASY to INSTALL ] - Automatically switch to high light mode when braking, ultra-bright for 5 secs lights warning back rider to enhance your safety. You can mount it under the saddle with metal mounting bracket or mount to the seat post with adjustable silicone strap.
- [ FOUR LIGHT MODES & HIGH LUMEN LED ] - There are 4 light modes for your choice, (1)Normal Flash Mode, (2)Breathing Flash Mode, (3)Fast Flash Mode, (4)Steady On Mode, enjoy your cycling as you wish, High lumen COB Led bike taillight makes you more visible, it's a perfect bike light for night riding.
- [ AUTO ON/OFF for BATTERY SAVING ] - This Smart bike tail light including Motion Sensor and Light Sensor, it will be auto off when detect in no motion after 30 secs. Once touch it or detect the bike is moving, the light will auto on again. Also when you ride under the sunlight, the tailight will be auto off due to the light sensor is working, IF YOU LIKE TO RIDE IN THE DAYTIME AND NEED THE TAILLIGHT KEEP WORKING ALL THE TIME, please choose the mode 3 and mode 4 to avoid Light Sensor working.
- [ BRIGHTNESS ADJUSTABLE & POWER INDICATOR ] - The brightness of this bike rear light is adjustable, in the steady on mode, just long press the button to adjust the brightness that you need, it Built-in 400mAh Li-ion battery, it can lasting 50 hours (will be influenced by the brightness that you setting) runing time when fully charged. four blue indicator lights, each shows 25% capacity, No longer worry about forget to charge.
- [ ALUMINUM ALLOY SHELL & IPX6 WATERPROOF ] - Made of aluminum alloy shell, this bike rear light has a nice touch and awesome appearance. It's waterproof/dustproof and shockproof, suitable for any harsh working environment. we guarantee a 12-month warranty, 30-day money back and 24/7 customer service to make it no risk for you to purchase this taillight.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Blue |
| Material type | Silicone, Metal |
| Number of items | 1 |
| Power source | Battery Powered |
| Included components | Batteries included |
| Batteries included? | No |
| Brand | G Keni |
| Manufacturer | KENSONIC INTERNATIONAL CO.,LTD |
| Item model number | Q5 |
| Product Dimensions | 3.3 x 3.3 x 3.8 cm; 100 g |
| ASIN | B0863SJ6FK |

## Product Details

- **Colour:** Blue
- **Brand:** G Keni
- **Material:** Silicone, Metal
- **Power source:** Battery Powered
- **Water resistance level:** Waterproof
- **Mounting type:** Seatpost Mount
- **Number of settings:** 4
- **Brightness:** 100 Lumen
- **Auto part position:** Rear
- **International protection rating:** IP65

## Images

![G Keni Smart Rear Bike Tail Light, Auto on/off Brake Sensing Bicycle Lights, USB Rechargeable Bikes Tailights, IPX65 Waterproof Rears Lights for Bikes, High Intensity Rear Cycling Safety Accessories - Image 1](https://m.media-amazon.com/images/I/61B6mE7BOQL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/212567824-g-keni-smart-rear-bike-tail-light-auto-on-off](https://www.desertcart.jp/products/212567824-g-keni-smart-rear-bike-tail-light-auto-on-off)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-07*