Bright Rechargeable LED Bike Light Headlight Perfect bike headlight-taillight Combination (Round Grey) Creditable Quality: Super Bright 1200LM L2 LED, Convenient USB Connection, Durable Aluminum Outer Casing, Heat Dissipation, Better Protection for Lamp & Battery. Multiple Function: Light Weight Battery Pack and Easy Installation, this Lamp could be Easily Used as Headlamp or Bike Light or Portable Light. Safety Insurance: 4400mah Battery Capacity, Provide 5h-15h Running Time ( High-Mid-Low-Strobe), Light Up for Your Road and No Worry to Ride/Walk in the Dark. Easy Usage: Powered by 3-5V USB Battery Supply, could be Lighted Up by Mobile Power Bank Besides the Battery Pack Supplied. WHAT YOU GET: 1 Lamp Unit, 1 Battery Pack, 1 Head strap, 1 Charging Cable, 1 Collection Bag and Life Time Warranty on Lamp/One Year on Battery and Our Friendly Customer Service.