--- product_id: 436670886 title: "ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories" brand: "rockbros" price: "278.24 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/436670886-rockbros-bike-tail-light-smart-brake-bicycle-rear-lights-rechargeable store_origin: TN region: Tunisia --- # Smart brake sensor, 5s high-intensity flash 400mAh battery, up to 50h runtime IPX6 waterproof, all-weather durability ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories **Brand:** rockbros **Price:** 278.24 DT **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Light up your ride, own the road, never blend into the dark! ## Quick Answers - **What is this?** ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories by rockbros - **How much does it cost?** 278.24 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/436670886-rockbros-bike-tail-light-smart-brake-bicycle-rear-lights-rechargeable) ## Best For - rockbros enthusiasts ## Why This Product - Trusted rockbros brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long Haul Ready:** Up to 50 hours of continuous illumination powered by a quick-charge USB Type-C battery. - • **Effortless Smart Power:** Auto on/off with motion and light sensors maximizes battery life without lifting a finger. - • **Ride Bright, Ride Safe:** High-lumen COB LED with smart brake sensing alerts riders behind you instantly. - • **Tailored Visibility Modes:** Four dynamic light modes adapt seamlessly to day or night rides and diverse conditions. - • **Built to Brave the Elements:** Premium aluminum alloy body with IPX6 waterproof rating ensures durability rain or shine. ## Overview The ROCKBROS Smart Bike Tail Light combines cutting-edge COB LED brightness with intelligent brake sensing technology to enhance cycling safety. Featuring four versatile lighting modes, a rechargeable 400mAh battery offering up to 50 hours of runtime, and an IPX6 waterproof aluminum alloy build, this rear light is engineered for all-weather reliability and effortless smart operation. Perfect for professional cyclists and urban commuters who demand visibility and style on every ride. ## Description Product Information: Lamp Beads: COB LED Battery: USB Rechargeable, 3.7V/400 mAh Visible Distance: 150 meters Material of Shell: Aluminum Alloy Material of Rack: Aluminum Alloy+Plastic Weight : 53 g Size：40 x 34x34mm Charging Time: 3-4 hours Four Modes: Mode 1: Normal Flash Mode 50hours Mode 2: Breathing Flash Mode 40hours Mode 3: Fast Flash Mode 40hours Mode 4: Steady On Mode 20hours Suit for seat rail spacing：47-55mm ## Features - High-Intensity LED & Brake Sensing Advancement:Illuminate your surroundings with our rear bike light's high lumen COB LED. featuring smart sensor technology that activates a brake light when you slow down. The light emits a high-intensity flash for 5 seconds, alerting riders behind you for enhanced safety - Dynamic Modes & Easy Install: Choose from 4 dynamic light modes: (1) Normal Flash, (2) Breathing Flash, (3) Fast Flash, (4) Steady On. Tailored for diverse riding conditions day and night. Effortlessly install with metal under-seat or rubber band seat post mounts. Fits road, mountain, cruiser, scooter - Smart Auto On/Off & Battery Efficiency:- Experience intelligent functionality with our bike rear light. Equipped with Motion and Light Sensors, it automatically turns off after 30 seconds of inactivity. Once movement is detected or your bike is in motion, the light reignites (auto on/off applies to modes 1 and 2). For continuous daytime visibility, opt for modes 3 or 4 to bypass the Light Sensor (Brake sensing active in all modes) - Extended Battery Life & Intuitive Power Display:Stay powered during your rides with the 400mAh Li-ion battery. On a full charge, enjoy up to 50 hours of usage. The built-in power indicator features four blue breathing lights, each indicating 25% battery capacity, ensuring you know when to recharge - Durable Build & All-Weather Ready : Crafted from premium aluminum alloy, our bicycle brake light boasts an elegant metallic finish. Designed to withstand diverse weather conditions with an IPX6 Waterproof rating, making it suitable for any ride ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09VYY4V88 | | Auto Part Position | Rear | | Best Sellers Rank | #15,552 in Sporting Goods (See Top 100 in Sporting Goods) #35 in Bike Taillights | | Brand Name | ROCKBROS | | Color | black | | Customer Reviews | 4.6 4.6 out of 5 stars (720) 4.6 out of 5 stars | | Included Components | mount | | International Protection Rating | IP65 | | Item Dimensions L X W X H | 40L x 34W x 34H millimeters | | Item Weight | 53 Grams | | Manufacturer | ROCKBROS | | Manufacturer Part Number | TL907Q50-CBR | | Material Type | Aluminum | | Model Number | TL907Q50-CBR | | Mounting Type | Seat Mount | | Number Of Items | 1 | | Number Of Settings | 4 | | Power Source | Battery Powered | | Unit Count | 1 Count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** ROCKBROS - **Colour:** black - **Material:** Aluminum - **Power source:** Battery Powered - **Water resistance level:** Waterproof ## Images ![ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories - Image 1](https://m.media-amazon.com/images/I/61zm72dq2cL.jpg) ![ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories - Image 2](https://m.media-amazon.com/images/I/71XZ-2hqklL.jpg) ![ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories - Image 3](https://m.media-amazon.com/images/I/81VRrXQ2KDL.jpg) ![ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories - Image 4](https://m.media-amazon.com/images/I/81JPpF2yqqL.jpg) ![ROCKBROS Bike Tail Light Smart,Brake Bicycle Rear Lights Rechargeable,IPX6 | Ultra Bright,LED Back Lights,Type C USB,Waterproof,Cycling,Safety Taillight, Bike Accessories - Image 5](https://m.media-amazon.com/images/I/718EAaPWxoL.jpg) ## Questions & Answers **Q: What is included inside the package?** A: Dual Bracket Mount: Comes with two brackets (Saddle Rail Mount + Seat Post Mount), Type-C cable and English manual. Single Saddle Rail Mount / Single Seat Post Mount: Includes only one matching bracket, plus Type-C cable and English manual. **Q: Where is the USB port on the light unit? Is it accessible without removing the tail light from the saddle?** A: The USB port is located between the light and the rack. You need to remove the tail light from the rack to charge it. **Q: Does the brake feature activate under light braking, or only during moderate and heavy braking?** A: It is quite sensitive. The brake light will activate with any braking. **Q: How quickly does it brighten when braking? Can it be set to stay off and only come on when braking?** A: It brightens immediately upon sensing the bike slowing down. There are 4 modes, and the light must be turned on for the brake light function to work. **Q: Does it have a low or dead battery indicator on the handlebars?** A: No. There are four small blinking blue dots in the center of the light unit. When all four blink, it indicates a 100% charge; three dots mean 75%, and so on. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best tail light I’ve ever used *by on Reviewed in the United States 12 July 2026* This things awesome! I love tricking out my bike with little gadgets and practical things as well. I’ve gone thru a lot of break lights over the years and this is the only one I’ve wanted to rate! Works so well, has lots of intelligent features like auto off in daylight, and getting brighter when breaking! Installation was super easy can be accomplished two different ways which is handy. Highly recommend! My only slight gripe is that you have to unscrew it from the mount to charge. A quick release would be nice, although the last one I had fell off when riding and it had a quick release! I guess we can’t have it all can we? 😅 ### ⭐⭐⭐⭐⭐ A Great Value for a Taillight *by on Reviewed in the United States 12 October 2024* I purchased this taillight to augment the anemic flasher on my Garmin Varia Radar. The RockBros light is a great value and an excellent rear light. A full charge seems to last forever and the brake light function is appreciated by riding partners. The light is very bright and easily visible even on a sunny day. The light came with two mounts, a strap for the seat post or a clamp on mount for the seat rails. The light screws into either of them just like a bottle cap. The charging port is accessed when you unscrew the light from the mount. The strap mount works fine, but as a rule I just don't trust straps. I used the clamp mount, which installed easily and holds the light in place on the rails. The clamp was a slight bit loose on my rails, but a small bit of tape under the clamp fixed the issue. I've used the light for about 1500 miles on gravel and trails with no issues. Taillights are a simple bit of kit, but I really appreciate the added visibility, both day and night. Hard to beat the value and function with this light. ### ⭐⭐⭐⭐⭐ Rock Bros killed it with this brake light! *by on Reviewed in the United States 25 September 2025* This little bike light is pretty cool! So many features on this.The light can be adjusted just to your needs. The coolest part about it is it senses when your sopping and lights up a bright brake light! You can adjust the brightness, different modes to your liking and has a fantastic battery life even for the longer rides! Mount is great, you can mount it just about anywhere on your bike! Fantastic product, very well made!Honestly this thing should cost way more for its quality. ## Frequently Bought Together - ROCKBROS Bike Tail Light Smart,Brake Sensing Bicycle Rear Lights for Night Ride,Ultra Bright LED Back Lights,Type C USB Rechargeable,IPX6 Waterproof,Cycling Safety Taillight Accessories - ROCKBROS Super Bright 1000 Lumen Bike Headlight, 5 Mode LED, USB Rechargeable, Aluminium Alloy, IPX6 Waterproof, Front Bike Light with Power&Smart Mode Display - ROCKBROS Bike Bell Classic Bicycle Bell Mountain Bike Bells for Adults with Loud Sound and Fit for 0.87-1.25in/22.2-31.8mm Bicycle Handlebars --- ## 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.tn/products/436670886-rockbros-bike-tail-light-smart-brake-bicycle-rear-lights-rechargeable](https://www.desertcart.tn/products/436670886-rockbros-bike-tail-light-smart-brake-bicycle-rear-lights-rechargeable) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-16*