SureFire M640DF Scout Light Pro 1500 Lumen Weapon Light Tan
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The SureFire M640DF Scout Light Pro in Tan is a full-size rifle-mounted LED weapon light that runs either one SF18650 rechargeable cell or two CR123A lithium primaries.
DF stands for Dual Fuel, and it is the feature that matters most on a light you rely on: when the rechargeable cell is flat, two shop-bought primaries will finish the night.
On the SF18650 it produces 1500 lumens and 16,000 candela for a 250 metre beam, running approximately 1.5 hours; on two CR123A cells it gives 1200 lumens and 12,800 candela for 220 metres over approximately 1.25 hours. The body is Mil-Spec hard anodised aerospace aluminium, 5.56 in (14.1 cm) long with a 1.125 in (2.9 cm) bezel, weighing 5.5 oz (156 g) and sealed to IPX7. It is supplied with the low-profile Scout Light Pro mount, MIL-STD-1913 rail and M-LOK cleats, and a Z68 click tailcap.
Sixteen thousand candela from 1500 lumens is a wide, even working beam rather than a tight spotlight, which is the right shape for searching outbuildings, hedgerows and yards where the useful light is the spill around the hotspot. If you need identification at distance instead, a turbo head focuses the same body much further. The tailcap can be swapped for a remote switch if the light sits forward on the handguard.
The supplied mount covers both M-LOK handguards and Picatinny rail sections, so most AR-pattern rifles and straight-pull uppers take it directly. The same light in black is the M640DF Scout Light Pro in Black, and for a focused long-throw beam the M640DFT Scout Light Pro Turbo in Tan is the turbo version. Switches live in weapon light accessories.
| Type | Rifle-mounted LED weapon light, Dual Fuel |
|---|---|
| Output | 1500 lumens (SF18650) / 1200 lumens (2 x CR123A) |
| Peak Beam Intensity | 16,000 candela (SF18650) / 12,800 candela (2 x CR123A) |
| Beam Distance | 250 m (SF18650) / 220 m (2 x CR123A) |
| Runtime | Approximately 1.5 h (SF18650) / 1.25 h (2 x CR123A) |
| Battery | One SF18650 rechargeable cell or two CR123A lithium cells |
| Mount | Low-profile Scout Light Pro mount, MIL-STD-1913 rail and M-LOK cleats |
| Tailcap | Z68 click tailcap |
| Length | 5.56 in (14.1 cm) |
| Bezel Diameter | 1.125 in (2.9 cm) |
| Weight | 5.5 oz (156 g) |
| Material | Aerospace aluminium, Mil-Spec hard anodised |
| Water Resistance | IPX7 |
| Finish | Tan |
| MPN | M640DF-TN-PRO |
A broad working beam that will run on whatever cells you can lay hands on. Order the M640DF Tan today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Weapon Lights, M640DFT Turbo Tan or browse all SureFire
| Brand | SureFire |
|---|---|
| Part no. | M640DF-TN-PRO |
| Category | Weapon Light |
| Barcode | 084871329279 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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