The SureFire 2211 X Compact Wristlight was designed with the input of active duty police officers to provide hands free tactical illumination. The 2211 X is attached to your support-side wrist, and automatically aligns with the two-handed grip on a pistol for excellent target illumination at close to mid-range. Its white light can be adjusted to three output levels: 300, 60 and 15. The highest can temporarily impair your targets vision and the lowest will greatly extend battery life. Features of the SureFire 2211 X Wristlight 300, 60, and 15 lumen output levels Aligns with handgun in standard two handed grip Uses (1) 123A battery SureFire 2211 X Compact Variable-Output 123A-Powered LED WristLight 2211X-A-BK