Features:

*Smart Brake Sensing: Automatically brightens for 2 seconds when braking to notify vehicles and pedestrians behind for enhanced safety.

*High Brightness LED: Features 300-lumen brightness with 220° wide-angle visibility for clear nighttime riding notifications.

*Multiple Light Modes: Offers 4 lighting modes (steady lighting, slow flash, breathing, fast flash) with 8 adjustable brightness levels for versatile use.

*Rechargeable Battery: Equipped with an 800mAh(3.7V) lithium battery. The charging interface is the standard USB-C 5V (incompatible with some fast charging heads).

*Weatherproof Design: IP66-rated waterproof construction ensures reliable performance in rainy conditions for all-weather durability.

Specifications:

*Product Name: Smart Bike Taillight 

*Material:aluminum alloy, engineering plastic

*Color:Red, Black

*Size: Diameter 40mm, height 38mm(taillight)

Package Content:

Lsit 1: 1* tail light, 1* circle seatpost bracket mount, 1* wrench, 2*screws

List 2: 1* tail light, 1* aerodynamic seatpost bracket mount, 1* wrench, 2*screws

List 3: 1* tail light, 1* saddle rail bracket mount, 1* wrench, 2*screws

Note:

1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight manual measurement deviation for the data.