Specifications Dimension: 74.5 x 26 x 28 mm Weight: 43 g (with battery) Light source: Red LED x 5 Battery: Lithium Polymer rechargeable Runtime: High (40 lumens): 1.5 hrs, Low (5 lumens): 15 hrs, Flashing (30 lumens): 50 hrs, Rapid (50 lumens): 20 hrs, Group Ride (40 lumens): 15 hrs, Daytime HyperFlash (50 lumens): 30 hrs Recharge time: 2.5 hrs (USB) Mount size: Rubber band mount (fits φ 26.0-32.0 mm seatpost) Water resistant: IPX4 Note: Kinetic mode activation depends on deceleration; light may not react or react slowly.
