The CSP-09 enables remote activation of your Surefire WeaponLight while maximizing space on your weapon's rail. It offers reliable and immediate momentary-on or constant-on activation from a single switch, simply lightly press for momentary activation or click through for constant-on mode. Designed with a compact and robust polymer housing, it securely attaches to any picatinny rail. Engineered to Surefire's stringent standards, the CSP-09 ensures dependable activation of your Scout Light whenever required.