SureFire Scout Light LED WeaponLight &ndash; White and IR Output 150 Lumens of white light output for 2.5 hours and 120 mW of IR output Virtually indestructible white/IR LEDs regulated to maximize light output and runtime SwitchesMomentary-on tape switch (7" cable), momentary/constant-on pushbutton switch Mounting systemIntegral Swing-Lever clamp for Picatinny rails ConstructionHigh-strength aerospace aluminum with Mil-Spec anodizing; coated, tempered window