Go With The Turbo Option. The ultra-compact KE2-T Turbo Scout Light Pro head generates 700 lumens and 70,000 blazing candela from two 123A batteries when used on non-Dual Fuel M600/M640U Scout Lights. This small, rugged bezel provides a concentrated, far-reaching, high-intensity beam for positive target identification farther downrange. Constructed of lightweight aerospace aluminum coated with a Mil-Spec hard-anodized finish, the KE2-T will withstand the rigors of combat without weighing down your weapon. Upgrade your M600/M640U to Turbo high-candela performance with the KE2-T. FeaturesVirtually indestructible ultra-high-output LED generates 1,000 lumens of blinding light; produces tactical-level light for 1.25 hours on two 123A batteriesSureFire's turbo reflector concentrates the output into a tightly focused beam for positive I.D. farther downrangeRugged, durable and combat ready hard-anodized aluminum body and tempered window