Description: Specifications: light source : COB LED integration,Use 26 highlight chips. Color: Red/White. white for front, Red for Back. Model: low light --- middle light --- high light --- 50 % high light --- 100% Flashing --- Strobe Charging : USB Charging(Android interface) Using time : 3-6 hours Suits :Seat tube diameter 15-32mm Mode switching: 1.Press the power button in the power off state to select 3 constant light modes. 2.Press and hold the power button in the power off state to select 3 flash modes. Specifications: Features: Casing made of 100% new PC+ABS material Equipped with gel strap, wide range of applications Easy installation without involving any tools Easy to install and easy to carry. Suitable for most bicycles. Package Included: Package Includes:1 pcs light