WEST Smart Bicycle Rear Light Auto Start/Stop Brake Sensing Bike Light Waterproof USB Charge Cycling Taillight Bike LED Light<br> Style: classic smart sensor<br> Function: Brake sensor, intelligent light sensor, vibration sensor<br> Mode: 6 modes 7 modes<br> Battery: 500mah 500mah<br> Lumens 100 100<br> Weight 33g (tail light only) 32g (tail light only)<br> Material PC case PC case<br> Wick COB Wick COB Wick<br> LOGO white hot silver LOGO<br> Specifications:<br> Smart tail lamp<br> 1. [usage] when the speed becomes slow in any mode, the lamp will automatically switch to super strong mode (three times as strong) to remind the rear- When the lamp senses that it is stationary for more than 3 minutes, the lamp will turn off automatically (equipped with an intelligent light sensing switch, which will turn on automatically according to the light intensity): it will turn on automatically when it senses vibration again.<br> 2. [on / off mode]: Click to start the automatic mode, and long press to start the manual mode; Press and hold to turn off the lights.<br> -Cob surface is luminous, with 30 light beads each, super bright design.<br> -Appearance: all-round visual angle visibility, and humanized design is realized through pulse mode.<br> 3. USB recyclable charging (lithium polymer battery 500mah)<br> 4. [seven modes can be switched cyclically] low light - medium light - high light - slow flash - fast flash - burst flash - breathing<br> 5. [automatic battery protection function], the voltage is lower than 2.8V and does not work.<br> -Rubber band and silicone pad are installed and fixed, which is convenient for disassembly and installation<br> Package Included:<br> 1 * rubber ring, 1 * data cable, 2 * rubber pad, 1 * tail lamp / 1 * rubber ring, 1 * data cable, 1 * rubber pad, 1 * tail lamp<br> Notes:<br> The classic has only one gasket