SureFire M640 Dual Fuel Scout Light Pro 1,500LM


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The Dual Fuel Scout Light Pro's new Low-Profile Mount (LPM) delivers unprecedented versatility, allowing the user to optimize the light’s position relative to the rail. Rugged 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 delivers 1,200 lumens of blinding white light with 123A batteries or 1,500 lumens of light with the SF18650B* rechargeable lithium-ion battery, and its Total Internal Reflection (TIR) lens shapes the beam for plenty of reach and ample surround light. It’s ideal for close-to longer-range applications. Constructed of lightweight aerospace aluminum, Mil-Spec hard-anodized, and O-ring sealed to keep out the elements.

 Surefire M640DF Pro Features

  • Dual fuel light — can be powered by an SF18650B lithium-ion rechargeable battery or two 123A lithium batteries
  • Generates up to 1,500 lumens of TIR-focused light with included SF18650B or 1,200 lumens with 123A batteries
  • Versatile Low-Profile Mount (LPM) 
  • Virtually indestructible ultra-high-output LED
  • TIR lens shapes versatile beam 
  • Mil-Spec hard-anodized aluminum body and tempered window 
  • O-ring seals keep out moisture
  • Activation via Z68 momentary/constant-on pushbutton switching with protective shroud
  • Mounts for MIL-STD-1913 rails and M-LOK rails included


High Output

1,500 Lumens (Sf18650b) / 1,200 Lumens (123a)

High Runtime

1.5 Hours (Sf18650b) / 1.25 Hours (123a)

Peak Beam Intensity

16,000 Candela (Sf18650b) / 12,800 Candela (123a)


250 Meters (Sf18650b) / 220 Meters (123a)


One Sf18650b Rechargeable (Incl.) Or Two 123a Lithium


5.56 In

Weight W/ Batteries

5.5 Oz


Aluminum / Mil-Spec Hard Anodized

Bezel Diameter

1.125 In

Liquid Ingress Protection


Model UPC
 M640DF-BK-PRO 084871329262
 M640DF-TN-PRO 084871329279

1913 Picatinny Mount installed, MLOK Mount, included, Z68 On/Off Tailcap, SF18650B Micro-USB Rechargeable Battery Included 
California Proposition 65 Warning

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