Pushtype aiming light: The compound bow sight light features a pushtype design for easy activation with a simple touch. Nonadjustable brightness: The brightness level is fixed, providing consistent and reliable illumination for your compound bow. 9mm interface compatibility: Compatible with a 9mm interface, making it suitable for a wide range of compound bows. Durable and replaceable: The button aiming light is built to be durable and longlasting. It comes with a replaceable button battery for extended usage. Use scenarios Lowlight hunting or dusk/dawn practice: Mount and activate quickly to illuminate the sight so you can aim with confidence when light is limited. Range training in twilight: Provides steady illumination for sight alignment and repeatable shot practice without fiddling with settings. Field setup or adjustments in dim conditions: Enables fast, reliable illumination to verify sight alignment and prepare for a precise shot.