With 400 lumens of vibrant white light, the WML Series is constant, momentary and strobe. Extensively tested for emitters provide up to 1.5 hours of runtime. MIL-STD-810G certified, this 3-ounce weapon light's concentrated, high-intensity beam fills your field of view for close to mid-range target identification. The strobe function is easily disabled and the easy-to-operate lockout system ensures the light isn't turned on until you're ready. The all-inclusive rail clamping design integrates seamlessly with your weapon, providing simple, fast mounting with no need for additional tools. Mfg: Inforce-Mil SPECS: Batteries- 1 Lithium 123A included, head removes for battery replacement.