--- product_id: 624234337 title: "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: "R1049" currency: ZAR in_stock: true category: "G Keni" url: https://www.desertcart.co.za/products/624234337-smart-brake-sensing-rear-bike-lights-auto-light-sensing-bike store_origin: ZA region: South Africa --- # 120 lumens ultra bright LED output 50 hours USB-C rechargeable battery Smart brake alert for instant safety 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:** R1049 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Light up your ride, own the night! ## Quick Answers - **What is this?** 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?** R1049 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/624234337-smart-brake-sensing-rear-bike-lights-auto-light-sensing-bike) ## 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 - • **Adaptive Lighting Modes:** Four versatile modes (Flash, Breathing, Fast Flash, Steady On) plus auto on/off sensor for seamless, energy-efficient use. - • **Power Up Fast, Ride Long:** USB-C rechargeable with a 400mAh battery delivering up to 50 hours runtime—never get caught in the dark. - • **Built Tough for Every Ride:** IPX6 waterproof aluminum alloy housing stands up to rain, dust, and rough trails—your all-weather safety companion. - • **Brake Smarts, Instant Alerts:** Automatically switches to ultra bright mode for 5 seconds when braking, ensuring you're seen and safe in traffic. - • **Visibility That Commands Attention:** 120 lumens COB LEDs with up to 1000m visibility—ride confidently in the darkest conditions. ## Overview The G Keni Smart Brake Sensing Rear Bike Light combines cutting-edge brake detection technology with ultra bright 120 lumen COB LEDs, offering up to 1000m visibility. Featuring four customizable light modes and an intelligent auto sensor, it maximizes safety and battery life. Its durable IPX6 waterproof aluminum design and USB-C rechargeable 400mAh battery provide up to 50 hours of reliable illumination, perfect for professional commuters and mountain bikers who demand performance and style. ## 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 ## 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 | #71,329 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #93 in Bike Taillights | | Brand | G Keni | | Brand Name | G Keni | | Color | Black | | Customer Reviews | 4.5 out of 5 stars 2,325 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:** Black - **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 ![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) ![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) ![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) ![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) ![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. ## 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 --- ## 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.co.za/products/624234337-smart-brake-sensing-rear-bike-lights-auto-light-sensing-bike](https://www.desertcart.co.za/products/624234337-smart-brake-sensing-rear-bike-lights-auto-light-sensing-bike) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-29*