[Intelligent Brake Sensing]-When braking, it will automatically switch to the bright light mode, and the super bright light will alert the rear rider or driver to enhance your safety. You can fix it on the seat with adjustable silicone tape in 5 seconds. Besides ensuring the safety of cyclists, our smart lights can also be installed on strollers, wheelchairs, pet carriers, childrens bicycles, backpacks and helmets.
[Six light modes & high lumen LED]-There are six light modes for you to choose from, (1) always on; (2) breathing mode, (3) slow flash mode, (4) flash mode, (5) rhythm flash; (6) Energy-saving flash, enjoy riding as you please. The high lumen COB Led bicycle tail light makes you more conspicuous, and is the perfect lamp for riding at night.
[Automatic on/off to save battery]-This smart bicycle taillight includes a motion sensor and a light sensor, and it will automatically turn off when no motion is detected after 30 seconds. Once you touch it or detect that the bike is moving, the light will automatically turn on again.
[USB charging & long battery life]-Built-in 250mAh lithium battery, which can work for 35 hours when fully charged and stand by for 1 month. Conveniently, use the USB cable on your computer to power it, the power pack, or any device with USB interface. It can be easily detached from the bicycle bracket for easy charging.
[180-degree visibility & IPX5 waterproof]-This taillight with raised design, 180-degree visibility, waterproof, dustproof and shockproof, is suitable for any harsh working environment.

Colour:black
Material:ABS

Package Contents:
1 x tail light
1 x USB cable