Foursevens Quark Smart QSL 1 x CR123/1 x 16340 350 Lumen CREE XM-L2 LED Flashlight

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Sale price$34.95 Regular price$65.00
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The Quark Smart family is the next generation of FOURSEVENS flashlights, and our most versatile Quark light yet. With our radical Bluetooth functionality, your flashlight can now communicate with your smart phone. Just grab the FOURSEVENS Smart Flashlights App, coming soon to the AppStore, and pair your Quark Smart to your phone. The app will allow you to check the current battery life and remaining runtime, configure the modes, and set proximity alarms.

And for anyone reluctant to connect their flashlight with their phone, the Quark Smart is still a fully functional Quark light even without pairing. Immediately out of the box, you can easily toggle through all eight output modes by double-clicking the side switch. Holding the tailcap switch will activate the light momentarily without accidentally switching to the next output.

As always, our Quark lights are waterproof and constructed with aircraft-grade aluminum and impact-resistant lenses. Quark lights have always been tough enough to meet any challenge. Now they are working harder and smarter to get the job done.


Current Regulation
Smart Circuit for Rechargeable Batteries
Reverse-Polarity Protection


  • Dimensions: Length: 3.43 in / Diameter: 0.86 in / Weight: 1.46 oz
  • Voltage: 2V-4.2V
  • Spot Beam: Angle: 29.2 Degrees / Diameter at 3 meters: 780 mm
  • Flood Beam: Angle: 62.8 Degree / Diameter at 3 meters: 3.7 meters
  • Moonlight: 1 lumens, 15 days / Low: 10 lumens, 18 hrs / Medium: 100 lumens, 3 hrs / High: 350 lumens, 1.5 hrs
  • Brightness Levels: Moonlight: 1 lumens, 15 days / Low: 10 lumens, 18 hrs / Medium: 100 lumens, 3 hrs / High: 350 lumens, 1.5 hrs
  • Special Modes: Strobe: 3 hrs / SOS: 5 hrs / Beacon(hi): 10 hrs / Beacon(lo): 30 hrs
  • Reflector: Textured
  • Body Material: Type-III hard-anodized aircraft-grade aluminum


  • Battery
  • Lanyard
  • Split ring for keychain attachment
  • Spare o-ring
  • Holster
  • Finger-grip
  • Smart watch is not included.

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