NiteRider: The NiteRider® Sentry™ Aero 260 is a lightweight, aero tail light featuring dual LED light strips to deliver 260 lumens of Daylight Visible red light. An inner and outer lens design helps to shape light output, producing long-range visibility when viewed directly from the rear but also provides ample surrounding light to the peripheral, making the Sentry™ Aero 260 visible from nearly any angle.• Daylight Visible Flash (DVF)• 260 lumen super bright tail light• Group Ride Mode – be seen without distracting fellow cyclists• Easy on and off Aero seat post strap mount• Aero seat post strap included• Convenient USB rechargeable• Super bright Daylight Visible Flash mode• Innovative Aero shape with 260 degrees of visibility• FL1 Standard IP64, dust and water-resistantLumen Output: 260Run Time: 4:30 – 30:00hrsCharge Time: 2:30hrsWeight: 82gBattery: Li-PoWARRANTYThe Sentry™ Aero 260 is backed by NiteRider’s lifetime warranty that covers any defects in material and workmanship, mechanical components (housings, covers, mounts and fasteners) and LEDs.SYSTEM INCLUDESLED Tail LightSeatpost MountUSB Cable