To further rider safety and visibility, the CherryBomb 100 employs a custom-made, built-in reflector that allows the rider to be night time visible even when the taillight is in the off position. Clip and bike mounts are included for flexible mounting options. Features - Lumen Output: 100 - 4 Modes with a Run Time up to 136h - 2 x AAA Alkaline Battery Powered - Weight: 82g - Battery: 2 x AAA Alkaline - Highly Visible up to 1 Mile - 100 Lumen Daylight Visible taillight - Water / Dust Resistant IP64 Rated Run Time - Fast Flash--96:00h - Pulse Flash--136:00h - Steady High--72:00h - Steady Low--127:00h