ROCKBROS Q-Series Smart Brake Sensing LED Bicycle Taillight

Intelligent rear lighting designed for visibility, convenience, and everyday cycling performance.

Upgrade your bicycle lighting with the ROCKBROS Q-Series Smart Brake Sensing LED Taillight. Designed for road cyclists, mountain bikers, and daily commuters, these compact rear lights combine intelligent sensing technology, rechargeable convenience, and durable construction.

Available in six models—Q50, Q5 Mini, Q52, Q51, Q4, and Q2S—the ROCKBROS Q-Series offers a variety of designs to accommodate different cycling preferences.

Key Features

• Smart Brake Sensing Technology: Intelligent sensing helps detect braking activity and provides enhanced rear illumination to alert approaching road users.

• USB Type-C Rechargeable: Convenient rechargeable operation eliminates the need for disposable batteries.

• IPX6 Water Resistance: Designed to withstand powerful water sprays and wet riding conditions.

• Multiple Lighting Modes: Select from available lighting settings to accommodate different riding environments.

• Intelligent Motion Sensing: Smart sensor functionality supports automatic lighting operation on compatible models.

• Compact and Lightweight: Streamlined designs help minimize additional weight and bulk.

• Durable Construction: Designed for everyday road cycling, mountain biking, and commuting.

• Convenient Mounting: Mounting accessories vary by model and selected configuration.

Available Models

Note: Design, dimensions, battery capacity, mounting accessories, and lighting functions may vary by model. Please select your preferred model before purchasing.

Product Specifications

Safety & Operating Precautions

For safe and reliable operation, follow these recommendations:

• Regularly check that the bicycle light is securely mounted.

• Do not use damaged mounting straps or accessories.

• Monitor the remaining battery charge and indicator lights.

• Stop the bicycle before manually operating the light's controls.

• Keep the product out of reach of children.

• Clean the light with a soft cloth dampened with water or mild soapy water.

• Avoid using harsh chemicals or abrasive cleaning materials.

Charging Instructions

• Use a compatible USB charging source following the manufacturer's recommendation of at least 500mA (USB 2.0).

• Charge within an ambient temperature range of 41°F–104°F (5°C–40°C).

• Avoid charging in direct sunlight or inside a hot vehicle.

• Keep the charging connection clean and free of debris.

• Avoid excessive vibration while charging.

• If charging through a computer, ensure the USB port remains powered.

• Disconnect the charging cable once charging is complete.

Battery Care & Storage

Proper battery maintenance can help preserve long-term performance.

• Avoid prolonged exposure to high temperatures and direct sunlight.

• Do not leave the light connected to a charger unnecessarily after charging is complete.

• A significant reduction in operating time after a full charge may indicate battery deterioration.

• During extended storage, periodically charge and discharge the battery, approximately once every 4–6 months, as recommended by the manufacturer.

• Store the light in a cool, dry location.

Manufacturer Warranty Information

The manufacturer's documentation describes the following warranty provisions:

• 15-Day Replacement Provision: One replacement of the same model for qualifying product failures under normal operating conditions.

• One-Year Limited Warranty: Coverage for qualifying material and manufacturing defects.

Manufacturer exclusions include normal warranty expiration, accidental damage, misuse, cosmetic scratches, unauthorized disassembly or modification, and damage caused by natural events.

Important: Manufacturer warranty availability, eligibility, and claim procedures are subject to confirmation. This information does not replace Velozzo's published return and refund policies.

Upgrade Your Cycling Visibility

Whether commuting through city streets, exploring mountain bike trails, or enjoying recreational rides, the ROCKBROS Q-Series offers practical rechargeable lighting solutions for a variety of cycling needs.

Choose the model that best suits your bicycle and riding preferences.

ROCKBROS Q-Series — Smart Lighting for Every Ride.