





ROCKBROS Bike Tail Light Smart USB Rechargeable IPX6 Waterproof
🎁 Buy 2+ Bike Bags, Get 15% Off Each
Shipping Fees:
We provide clear and detailed shipping fees based on the order amount and shipping method:
- Standard Shipping:
- Order Amount Below $29: Shipping Fee - $4.99
- Delivery Time: 3-4 business days
- Free Shipping:
- Order Amount $29 and over: Free 📦
Shipping Info
- US Warehouse In-stock: 3–4 business days
- 🌍International Shipping (if US out of stock): 7–10 business days
- 🚲Bicycles: 20–25 business days
Please note that we do not charge any additional taxes.
We offer a 30-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues. EU customers have a 14-day no-questions-asked return right. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email service@rockbrosbike.us.
At ROCKBROS, we offer a worry-free 1-year warranty to ensure your satisfaction. Whether it's a defect or product issue, simply reach out to us at service@rockbrosbike.us with your order details. We'll handle the rest to make sure your experience is smooth and hassle-free.

Product Highlights
FEATURES
Product Description
Feature | Details |
---|---|
Lamp Beads | COB LED |
Battery | 3.7V / 400 mAh |
Visible Distance | 150 meters |
Brightness | 50 lumens (Ultra Bright) |
Charging Time | 3-4 hours |
Water Resistance | IPX6 (Waterproof) |
Material | Aluminum Alloy & Plastic |
Weight | 53g |
Mounting Type | Seat Mount |
Settings | 4 Modes |
Dimensions | 1.34" x 1.34" x 1.34" |
- [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.
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[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. ROCKBROS GUARANTEE: Backed by a 12-month guarantee, a 30-day money-back guarantee, and 24/7 customer support, ensuring your purchase is riskless.