Rear Light with Sensitive Ambient Light Sensor. Rear light for urban and road cyclists . Red light LED 30 lumens. Light sensor. Low consumption mode. Duration: 2 to 4.5 hours. 3 brightness and 3 flash modes. USB rechargeable. Waterproof. Memory function. Magicshine LED 30TL taillight with energy saving flash and don't worry about sudden power failure.
