The M640DF combines the best attributes of the M640 Light with high-candela performance and dual-fuel capability. Fits: M640DF. 1 M640DF flashlight. Shockproof and Waterproof FlashLight. - Its output is focused by a Total Internal Reflection lens into an intense, far-reaching beam that also provides significant peripheral illumination, making it ideal for close- to longer-range applications.
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