About this item HIGH POWER 800 LUMEN HEADLIGHT: a high intensity 800 lumen white LED equipped with OptiCube lens technology for a wide beam; Features excellent side visibility for safety. USB RECHARGEABLE: Runs up to 30 hours and charges in just 3-7 hours with the included micro USB cable; Features a 3-level low battery indicator light (blue: above 50%, yellow: 30-50%, red: under 30%). 5 MODES: Ride any time of day with 5 light modes (High, Middle, Low, Daytime HyperConstant and Flashing) and mode memory function; Quickly change to High with a double-click of the power button. EASY ON AND OFF: Includes adjustable FlexTight bracket that fits handlebars up to 35 mm in diameter; Our improved release button makes it easy to take the light off to charge. 300 LUMEN DAYTIME SAFETY LIGHT: 3 LEDs with OptiCube lens technology and 300 Lumen Daytime Hyperflash ensure you'll be seen. BE SEEN AT A DISTANCE: Long rear beam projection technology greatly increases the effective visibility range, giving motorists more time to react. FOUR MODES: Constant (30 lumens - 5 hrs), Flashing (30 lumens - 45 hrs), Group Ride (100 lumens - 8 hrs), Daytime Hyperflash (300 lumens - 10 hrs). SP-15 BRACKET: New SP-15 seatpost bracket fits contemporary aero seatposts. 300 DEGREE VISIBILITY: Opticube lens technology provides 300 degrees of visibility. Show more › See more product details