Retrospec Bicycles Denali-7 Ultra Bright 7 LED Urban Commuter Bike Light 3 Ultra bright White/Red LEDs make this light one of the brightest affordable compact bike safety lights Unique design enables up to 1 mile and 220 degree light range and runs up to 100 hours on 2 included AAA batteries Waterproof Body also includes Handle Bar Mount and Seat Post Mount Easy to install and quick to release for safe keeping