The SUREFIRE M640DF SCOUT PRO delivers an impressive output of 1500 lumens, making it a superior tactical lighting solution. Designed for versatility, it supports both lithium batteries and rechargeable options, ensuring you are always ready for action. 1500 Lumens of intense brightness Dual Fuel capability: compatible with 2 CR123A batteries or 1 SF18650B rechargeable battery 1913 Picatinny Mount for secure attachment M-LOK Mount for enhanced adaptability Convenient On/Off Tail cap for quick operation Equip yourself with the SUREFIRE M640DF SCOUT PRO for unmatched performance in any situation.