01. FEATURES DuaLens optical low beam, providing broad flood light with cut-off line for commuting, no dazzle and glare for oncoming riders and pedestrians 02. FEATURES Dual LEDs for HiLo beam system, providing illuminating light similar to automotive headlight with far reaching high beam and low beam 03. FEATURES LED real-time display to show remaining runtime in each brightness level 04. FEATURES Wireless remote switch with instant max output and brightness adjustment buttons to control the light easily 05. FEATURES Extending battery runtime with external power source 06. FEATURES USB output to charge portable digital devices 07. FEATURES Intelligent memory circuit remembers the last used brightness level and mode when turned on again 08. FEATURES Quick release design for easily slide in and out 09. FEATURES Compatible with handlebar of 31.8mm and 35mm diameter