Description
The Surefire M640DF Scout Light Pro Dual Fuel can be powered by either the included SF18650B rechargeable lithium-ion battery or two 123A batteries. The M640DF features Surefire’s new Low-Profile Mount (LPM) which delivers unprecedented versatility by allowing the user to optimize the light’s position relative to the rail. The LPM easily and securely attaches to any MIL-STD-1913 or M-LOK rail. The lightweight Scout Light Pro Dual Fuel features a virtually indestructible LED that generates an incredible 1500 lumens of blinding white light with the SF18650B rechargeable or 1200 lumens with 123A batteries. The TIR lens produces a far-reaching beam with ample surround light for exceptional peripheral vision, making it ideal for medium to longer-range applications. The light is activated by pressing the tailcap pushbutton. Constructed of high-strength aerospace aluminum with Mil-Spec Type III hard anodizing for superior toughness and corrosion resistance and O-ring sealed to keep out the elements.
| Model | M640DF-BK-PRO |
| Color | Black |
| Output | 1500 Lumens (SF18650B) or 1200 Lumens (123A) of White light |
| Tactical Runtime | 1.5 Hours (SF18650B ) or 1.25 Hours (123A) |
| Weight w/Batteries | 5.5 ounces |
| Batteries | 1* SF18650B rechargeable(included) or 2* 123A |









