Bike Tail Light Smart - Brake Sensing Bicycle Rear Lights for Night Ride

Enjoy ROCKBROS, Enjoy Cycling! ROCKBROS is an original cycling equipment brand, owned by a passionate team whose mission is to provide top-quality and comfortable products as well as get customers love. We concentrate on exploring the latest cycling trend and create the most functional equipment for all cyclists.

[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. ROCKBROS GUARANTEE: Backed by a 12-month guarantee, a 30-day money-back guarantee, and 24/7 customer support, ensuring your purchase is riskless.

What is included inside the package? The package comes with two mounting brackets (one under-seat and one seat post), a Type-C USB charging cord, an English manual, and the bike back light itself.

Where is the USB port on the light unit? Is it accessible without removing the tail light from the saddle? The USB port is between the light and rack, so you need to remove the tail light from the rack to access it for charging.

Does the brake feature activate under light braking? Or only when moderate and heavy braking? The brake feature is pretty sensitive - any braking would activate it.

How fast does it come on or on brighter when braking? Can it be set to off and only come on when braking? It comes on as soon as it senses your bike slowing down. There are 4 modes, and it has to be turned on for the brake light to work.

Does it have a low or dead battery indicator on the handlebars? No, there are four small blinking blue dots in the center - when all 4 blink, it's 100% charged, 3 blinks = 75%, etc. to indicate the remaining battery.

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