SureFire's XH30 Handgun Weaponlight was specifically designed to interface with the MasterFire Rapid Deploy Holster. The XH30 is compatible with the majority of handguns with accessory rails, and once attached, will securely lock into a SureFire MasterFire holster at just the right angle for a quick draw. Once holstered, the XH30 can be set to activate instantly when drawn from the MasterFire, saving much needed time in an emergency situation. The light itself has two different power outputs, 1000 and 300. High output can be used to temporarily impair a targets vision and illuminate distances up to 213 meters, low output greatly improves battery life. Features of the SureFire XH30 andgun WeaponlightHigh and low output levels: 1000 and 300Interfaces with MasterFire Rapid Deploy Holster to activate when drawnTotal Internal Reflection (TIR) lensRuntime (high output) 1.25 hoursRuntime (low output 2.5 hours SureFire XH30 TIR 1000/300 LU Holster WeaponLight for MasterFire RDH XH30