---
product_id: 49833229
title: "idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm."
brand: "idem"
price: "$6.48"
currency: USD
in_stock: false
reviews_count: 8
url: https://www.desertcart.us/products/49833229-idem-fcc-certified-rechargeable-smart-bike-taillight-that-turns-on
store_origin: US
region: United States of America
---

# idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm.

**Brand:** idem
**Price:** $6.48
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. by idem
- **How much does it cost?** $6.48 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/49833229-idem-fcc-certified-rechargeable-smart-bike-taillight-that-turns-on)

## 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



## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 8.5 x 4.5 x 2.1 inches |
| Package Weight | 0.18 Kilograms |
| Item Dimensions  LxWxH | 3.5 x 1.7 x 1 inches |
| Brand Name | idem |
| Material | Plastic |
| Part Number | L1 |

## Product Details

- **Brand:** idem
- **Material:** Plastic
- **Water Resistance Level:** Waterproof
- **Mounting Type:** Seat Mount
- **Auto Part Position:** Rear
- **UPC:** 864167000408

## Images

![idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. - Image 1](https://m.media-amazon.com/images/I/71iI2Zne7WL.jpg)
![idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. - Image 2](https://m.media-amazon.com/images/I/61GMG2SBAHL.jpg)
![idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. - Image 3](https://m.media-amazon.com/images/I/61um9iTlfHL.jpg)
![idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. - Image 4](https://m.media-amazon.com/images/I/61XmTSRP5eL.jpg)
![idem FCC Certified, Rechargeable Smart Bike Taillight That Turns On and Off Automatically, Deceleration Signal When Bike Slows Down Abruptly, SOS Distress Light, and Optional Theft-Deterrent Alarm. - Image 5](https://m.media-amazon.com/images/I/61GziWcrqIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is the best tail light for $10! Does the job that others $20-30 don't.
*by A***. on May 4, 2020*

This is the best product for the money! Quality is perfect, the tail light can be fixed on a seat post or on a saddle - both brackets are supplied. Very bright and deceleration sensor works ideally and turns on the brake light mode just in time! I purchased 4 or 5 various tail lights including with deceleration sensor and none of them worked properly. Had to returned all of them. But this light does its job just perfectly. Price is very reasonable!

### ⭐ Total garbage. Don’t waste your money.
*by G***N on May 4, 2018*

The brake light feature just simply doesn’t work. Randomly turns on while braking making it useless as a safety feature. The light died after first exposure to rain which means it lasted about a week for me.

### ⭐⭐⭐⭐ Fantastic light but some notes...
*by L***M on July 18, 2019*

This is one hell of a great light. It is extremely bright and all the features work great--like the braking feature, SOS 'fallen and I can't get up' feature, However there are two features which I don't like.1. The alarm works perfectly, but it will raise the dead! When you turn the light on/off, the alarm beeps once--enough to startle everyone on the train when commuting. That one beep wakes everyone up.On several occasions the alarm went off accidently and I couldn't stop it. It happened once at a Home Depot in Manhattan and all the security guards had to come over. I literally had to take my jacket off to muffle it while I ran out of the store. On another occasion it went off at a bike shop and deafened the poor mechanic and everyone in the shop. They told me that they had to take it out in the back yard until the battery ran out.So far I have purchased about ten of these lights because they are so good and so efficient but I open them up and cut the wire to the buzzer.If you purchase this light make sure and use the tethered rubber cap to keep water out of the micro-USB charging port or else water will quickly damage the port.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/49833229-idem-fcc-certified-rechargeable-smart-bike-taillight-that-turns-on](https://www.desertcart.us/products/49833229-idem-fcc-certified-rechargeable-smart-bike-taillight-that-turns-on)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-14*