FOURSEVENS Quark Tactical QT2L-X Gen 2, XM-L2 Edition LED Flashlight wih Burst Mode, 780 Max Lumens - QT2L-X-AF

Part #: FSQT2LXAF | FOURSEVENS Flashlights


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FSQT2LXAF: Quark Tactical QT2L-X Gen 2 Cool White LED with Burst Mode
Say hello to the Quark Tactical QT2L-X with Burst mode. FOURSEVENS has upgraded the circuits on their popular Quark "X" 123² Tactical to give you a massive increase in lumen output.

Thanks to the Burst mode, a new feature for the QT2L-X, this light will hit a blazing 780 lumens of output for the first 60 seconds on the Max setting before ramping down over the next 30 seconds to 50% of the initial output.

As always, the Quark collection was designed to give you a staggering array of options, accessories, and interchangeability so that you have the right light for the job in any situation. With a waterproof, aircraft-grade aluminum body and impact-resistant lenses, these lights are tough enough to meet any challenge.

The Quark series offers a staggering array of options, accessories and interchangeability. With a wide range of LED, battery and clip choices, you get the features you want without compromise. Available in a Pro multi-mode interface or a Tactical interface with programmable primary and secondary outputs, these lights can be used in a wide variety of settings and applications. Waterproof and constructed with aircraft-grade aluminum and impact-resistant lenses, Quark lights are tough enough to meet any challenge.


Operating your Quark Tactical is simple. Insert the battery with the positive side (+) towards the head. Make sure the head and tailcap are tightened, then depress the tailcap button fully so that it "clicks" and the light turns on. You can also press the tailcap lightly (you don't have to "click" it on) to activate the light momentarily. This is known as the momentary-on feature.

The Quark Tactical can memorize any two modes of output, from its eight total modes, to be instantly available. These two memorized modes are accessed by either tightening or loosening the head (for example, tight can be Max, and loose can be Low).

Programming Modes:

To have your Quark Tactical memorize a different mode, turn it on and loosen the head by a half-turn. Then, tighten the head at least four times rapidly (twisting it tight, then loose, then tight, etc., four times). After the fourth time, leave the head tight or loose depending which position you want to program.

After three seconds, the light will flash, signaling it is ready to be programmed. Cycle through the eight available modes by clicking the tailcap off and on. The mode sequence is as follows:

Moonlight -> Low -> Medium -> High -> Max -> SOS -> Strobe -> Beacon

Once you find your desired mode, leave that mode on for ten seconds and the light will flash again, confirming that the mode has been memorized. To cancel programming before it flashes, turn the light off for three seconds.


FOURSEVENS warrants its products to be free from defects in materials and workmanship. We will repair or replace, at our option, without charge, any product or part which is found to be defective under normal use and service within 120 months from the date of purchase with proof of purchase. Such repair or replacement shall be the purchaser's sole and exclusive remedy under this warranty. This warranty does not cover normal maintenance and service and does not apply to any products or parts which have been subject to modification, misuse, abuse, negligence, accident, or improper maintenance or repair by anyone other than FOURSEVENS.
  • Powered by: 2 CR123A batteries (included)
  • LED Emitter: CREE XM-L2
  • Voltage range: 3.0V ~ 9.0V
  • 5 Current Regulated Output Levels
  • 3 Flash modes: Strobe, SOS, Beacon
  • Square threads for lifetime smooth operation
  • Type III Hard Anodized finish
  • Fully knurled
  • Current regulation
  • Smart circuit for rechargeable batteries
  • Reverse polarity protection
  • Burst mode
  • Reversible/Removable Clip
  • Flexible & secure finger grip accessory
  • IPX-8 Waterproofing
  • Impact-resistant glass lens with Dual-coating - sapphire coating on the outside and anti-reflective coating on the inside for optimal efficiency and durability.
  • Reflector: Light orange-peel textured
  • T-6061 Aircraft-grade Aluminum Body
  • Stands on Tail (candle mode)
  • Reverse-polarity protection
  • Typical Output Levels and Runtimes + (LED drive current):
  • Moonlight: 0.5 lumens for 25 days
  • Low: 5 OTF lumens for 4 days 
  • Medium: 55 OTF lumens for 14 hours 
  • High: 300 OTF lumens for 3.2 hours 
  • Max: BURST at 780 OTF lumens for 1 minute, then 390 OTF lumens for 1.9 hours
  • Strobe: 10 Hz for 1 hour
  • SOS: 10 Hz for 4 hours
  • Beacon: 10 Hz for 12 hours
  • Spot Beam: Angle: 13.9°/Diameter at 3mm: 730mm
  • Flood Beam: Angle: 73°/Diameter at 3mm: 4.44M
  • Included accessories: Two FOURSEVENS CR123A batteries, lanyard, holster, hand-grip, spare o-rings, split ring for keychain attachment.
  • Length: 4.5 inches
  • Diameter: 0.86 inches
  • Weight: 1.8 ounces (w/o battery)

UPC Code: 6894662485008

Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.


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