---
product_id: 106263772
title: "Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours"
brand: "idem"
price: "¥6815"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/106263772-autosensing-bike-taillight-that-automatically-turns-on-off-low-battery
store_origin: JP
region: Japan
---

# Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours

**Brand:** idem
**Price:** ¥6815
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours by idem
- **How much does it cost?** ¥6815 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/106263772-autosensing-bike-taillight-that-automatically-turns-on-off-low-battery)

## Best For

- idem enthusiasts

## Why This Product

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

## Description

Summary of Features: SAFE: Automatically turns on whenever bike is in motion, day or night, so you or your loved one will not forget. SIMPLE: Just power it on and leave it alone; it will switch on and off by itself when it should. Low battery indicator: Reminds you when a recharge is needed. Four flash modes: for day or night, individual or group riding GREEN: USB rechargeable. Protection: Water resistant. EASY: A breeze to install with intuitive Quick Start Guide. Peace of mind: One-year warranty with local support. Product Specification:  Model: L1C  Lumens: 60 Max  Battery: 680 mAh Li-ion Polymer  Charging: Micro USB 5V/0.5A  Recharge Duration: 2.5-3 Hours  Size: 2.17 x 1.93 x 1.34 Inch  Net Weight: 2.01 oz  Run-Time & Lumens  1. Flashing High 15 lumen &#x2013; 15 Hours  2. Constant High 15 lumen &#x2013; 4 Hours  3. Flashing Low 5 lumen &#x2013; 30 Hours  4. Constant Low 5 lumen &#x2013; 12 Hours In the Box:  L1C Bike Tail Light with 3M Rubber Pad  Rubber Mount Fastener  Micro USB Charging Cable  Quick Start Guide

## Features

- SAFE: Auto taillight whenever bike is in motion, day or night.
- SIMPLE: Taillight turns on and off automatically when it should, and tell you when to recharge.
- PROTECTION: Water resistant.
- EASY: A breeze to install with intuitive Quick Start Guide.
- GREEN: USB rechargeable with low battery warning.

## Images

![Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours - Image 1](https://images-na.ssl-images-amazon.com/images/I/61z9AgdLEML.jpg)
![Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours - Image 2](https://images-na.ssl-images-amazon.com/images/I/71DrYTwjzgL.jpg)
![Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours - Image 3](https://images-na.ssl-images-amazon.com/images/I/51bGl7rXxDL.jpg)
![Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours - Image 4](https://images-na.ssl-images-amazon.com/images/I/61XDvadfuwL.jpg)
![Autosensing Bike Taillight That Automatically Turns On/Off; Low Battery Indicator; 4 Flash Modes for Day or Night, Individual or Group Riding; USB Rechargeable Battery Lasting Up to 30 Hours - Image 5](https://images-na.ssl-images-amazon.com/images/I/61Xl6X-rqnL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/106263772-autosensing-bike-taillight-that-automatically-turns-on-off-low-battery](https://www.desertcart.jp/products/106263772-autosensing-bike-taillight-that-automatically-turns-on-off-low-battery)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-16*