CATEYE Rapid X2 Kinetic rear light

it´s time for road safety to run ?round the clock. Introducing the Rapid X2 Kinetic, a movement-sensitive, day and nighttime light for your ride. The Rapid X2 Kinetic is a 50-lumen, USB rechargeable safety light that mounts easily on your seatpost. A built-in accelerometer automatically switches into a constant burst mode when it senses a sudden change in speed. Similar to daytime running lights on an automobile, the Rapid X2 Kinetic helps make your presence known as a cyclist. 180 degrees of visibility allows you to be seen from varied perspectives. A Battery Auto-Save feature makes sure you´re covered the entire ride by automatically switching to a flashing mode should the battery run low.With up to 30 hours of runtime, the Rapid X2 Kinetic ensures You´ll be drained from your ride long before your light is. Specifications: - Dimension: 74.4 x 30.5 x 32.9mm - Weight: 32g (with batteries) - Light source: COB LED Run time: - Low mode: 5 hrs - Flashing mode: 30 hrs - Rapid mode: 16 hrs - Battery: Lithium Polymer rechargeable battery - Recharge time：2 hrs (USB2.0) - Mount size: Rubber band mount (fits φ 12.0-32.0mm) - Other: Kinetic mode, Battery auto save, Low battery indicator, Light mode memory