The SureFire M640DF Scout Light Pro is the high-lumen, wide-beam member of the full-size Scout family — built for shooters who want maximum usable light and a broad, room-filling beam rather than a narrow long-throw spotlight. On the included SF18650 rechargeable cell it delivers a full 1,500 lumens with a balanced 16,000-candela beam that lights up everything in front of you.
"DF" is Dual Fuel: run the rechargeable SF18650 for full output, or two CR123A primaries (≈1,200 lumens) as a backup. It clamps to M-LOK or Picatinny on SureFire's low-profile Scout mount, and the aerospace-aluminium body is IPX7 weather-sealed. In stock for fast UK dispatch.
Finish: Black — also available in Tan.
Related options
Want a tighter, longer-throwing beam instead? The M640DFT Turbo trades total lumens for a focused 100,000-candela beam built for distance.
IDEAL FOR
- Full-size rifle platforms
- Tactical applications
- Home defence setups
- Law enforcement and professional use
KEY FEATURES
- 1500 lumen high-output LED for maximum illumination
- Balanced beam pattern for both throw and flood
- Dual Fuel capability (SF18650 rechargeable or CR123A batteries)
- Scout Light Pro low-profile mount system
- Durable aerospace aluminium construction
- O-ring sealed for weather-resistant performance
TECHNICAL SPECIFICATIONS
| Output |
1500 Lumens (SF18650) / 1200 Lumens (2 × CR123A) |
| Peak Beam Intensity |
16,000 Candela |
| Beam Distance |
Approx. 253 metres |
| Battery Type |
1 × SF18650 Rechargeable or 2 × CR123A |
| Runtime |
Approx. 1.5 hours (SF18650) / 1.25 hours (CR123A) |
| Material |
Aerospace Aluminium |
| Finish |
Black |
| Mount Type |
M-LOK / Picatinny Compatible |
| Length |
Approx. 5.6 in (14.2 cm) |
| Weight |
Approx. 5.5 oz (156 g) |
| Water Resistance |
IPX7 (1 metre for 30 minutes) |
| MPN / UPC |
M640DF-BK-PRO / 084871329262 |
WHAT'S INCLUDED
- M640DF Scout Light Pro Weapon Light
- Low-profile mount (M-LOK / Picatinny compatible)
- SF18650 rechargeable battery
- Charging cable
- Mounting hardware
- User manual
UK Delivery & Support
This SureFire M640DF is UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based aftersales support and SureFire's limited lifetime warranty.
Frequently Asked Questions
How does the M640DF differ from the M640DFT?
The M640DF is the high-lumen flood light — 1,500 lumens with a broad, balanced beam. The M640DFT is the Turbo, trading total lumens for a focused 100,000-candela beam that throws much farther.
What does "DF" / Dual Fuel mean?
It runs on either the included SF18650 rechargeable cell (1,500 lumens) or two CR123A primaries (≈1,200 lumens).
How does it mount?
On SureFire's low-profile Scout mount, compatible with M-LOK and Picatinny rails.
Is the battery included?
Yes — it ships with the SF18650 rechargeable cell and a charging cable.
How long does it run?
Around 1.5 hours on the SF18650, or 1.25 hours on CR123A primaries.
