The SureFire M640DFBKPRO Dual Fuel Scout Light Pro is a black anodized, cutting-edge weapon light designed for versatility and performance, making it an essential tool for tactical applications. This advanced unit features a Low-Profile Mount that allows seamless positioning on any MIL-STD-1913 or M-LOK rail, ensuring compatibility with other rail-mounted accessories while maintaining a sleek profile. Powered by a powerful ultra-high-output LED, the Dual Fuel Scout Light Pro delivers 1,200 lumens with standard 123A batteries and up to 1,500 lumens when run on the included 18650 rechargeable lithium-ion battery, ensuring exceptional brightness across varying scenarios. Its Total Internal Reflection lens produces a hybrid beam that combines long-range reach with ample surrounding light, providing effective coverage for both close-quarters and extended-range engagements. Constructed from lightweight aerospace aluminum and finished with Mil-Spec hard anodizing, this light is built to withstand demanding environments, and O-ring seals deliver IPX7 waterproof protection for reliability under adverse conditions. Weighing just 5.50 ounces and measuring 5.56 inches in length, it is designed for ease of use, featuring a push button tail-cap switch for quick activation. Whether for tactical applications or dependable outdoor illumination, the SureFire M640DFBKPRO stands out as a robust, dual-fuel lighting solution.