Pushtype aiming light: The compound bow sight light features a pushtype design for easy activation with a simple touch. Nonadjustable brightness: Brightness level cannot be adjusted, 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. Replaceable battery: The button aiming light is built to be durable and longlasting. It comes with a replaceable button battery for extended usage. Use scenario: Nighttime practice on dim outdoor ranges where quick activation is essential to illuminate the sight and improve aiming accuracy. Use scenario: Lowlight hunting or field archery, where consistent illumination helps with target acquisition and alignment. Use scenario: Range setup and sightin in limited lighting, providing fast, reliable light without needing to adjust brightness.