Surefire M640DF Scout Pro 1500 The Dual Fuel Scout Light Pro combines the proven features of the M600DF Scout Light. SureFire&';s Low-Profile Mount (LPM) offers unmatched flexibility, allowing the user to adjust the light&';s position relative to the rail. Durable and reliable, the LPM easily and securely attaches to any MIL-STD-1913 or M-LOK rail. The Dual Fuel&';s recoil-proof, ultra-high-output LED produces 1,200 lumens of bright white light with 123A batteries or 1,500 lumens with the SF18650B rechargeable lithium-ion battery. Its Total Internal Reflection (TIR) lens creates a hybrid beam pattern with plenty of reach and surrounding light. It&';s perfect for close-to longer-range use. Made of lightweight aerospace aluminum, Mil-Spec hard-anodized, and O-ring sealed to resist the elements, the Dual Fuel Scout Light Pro offers a fresh take on a legendary Weapon Light system. Details: Model: M640 Type: Weaponlight Description: 1500 Lumens Accessories: SF18650B USB Battery Color: Black Subcategory: Mounted Lights Style number: SFM640DF-BK-PRO