Features: It adopts a 5.5cm long high powers light strips lamp (consisting of 5 bright patch lamps), and is equipped with a crystal-grade acrylic transparent lampshade, and the viewing angle is wide to 180. The USB chargings interface is covered with swelling rubber. USB interface chargings, can be reciprocating charges and discharge, chargings speed is fasts, discharge time is long, generally chargings 2 hours, discharge time is about 1-6 hours. O-shaped silicone straps design, suitable for seat tube 1.2-3.2CM, both front and rear fine forks are available.