SureFire M600V Scout LED Weapon Light Construction High-strength aerospace aluminum with Mil-Spec anodizing, coated, tempered window Virtually indestructible white/IR LEDs produces 150 lumens of blinding white light or 120 mW of infrared illumination Momentary-on tape UE07 switch (7" cable) or a Z68 momentary/constant-on pushbutton switch Mounting system-Integral thumbscrew clamp for Picatinny rails Weatherproof O-ring and gasket sealed