• The 25 Lumen Quasar taillight features USB quick charge in 3.5 hrs • Features: • Tail Light: 25 Lumens* • USB Rechargeable • Built-In Belt or Backpack Clip • Bracket designed to fit multiple applications including aero-style bars • Can be mounted horizontally or vertically on bracket • UTL-4BK Modes: High (25 Lumens): 2.5 hrs, Low (10 Lumens): 5 hrs, Flash (25 Lumens): 5 hrs • User Replaceable Battery: Li-Polymer • Weight: 46 Grams with Bracket