Klarus ST15

Klarus ST15 - 1100 lumens - CREE XP-L HI V3 LED - 18650 x1 or CR123A x2

  • 4995
  • Save $ 999

The ST15 is a dual switch light, with one tailcap switch and one side switch. You control power with the tailcap and modes with the side switch, which also functions as a power indicator. From green to orange to red and flashing, the ST15 uses either one 18650 or 2 CR123As (batteries not included) to shoot 1100 lumens out to 305 meters for 1 hour.

Machined from aircraft-grade aluminum and hard-anodized with a black finish, the ST15 is able to stand on its tailcap and act as a candle if needed. The anti-roll design will keep the light in place if you set it on its side, along with the pocket clip or lanyard hole.


  • Manufacturer's page: Klarus ST15
  • CREE XP-L HI V3 LED delivers a maximum output of 1100 lumens, providing a strong spotlight with a maximum beam distance of up to 305 meters
  • Tactical ON/OFF Tail Switch designed for easy access in the dark while the Side Switch changes brightness.
  • The two separate switches with distinct functions simplify operation
  • Memory function that activates the preselected brightness level when the flashlight is switched on
  • Improved side switch to change brightness by either clicking through modes individually or by holding in the switch, which then cycles through the mode options automatically until you find the required level of brightness
  • Mode setting optimized for improved outdoor experience:
    Turbo mode of 1100 lumens provides maximum clear vision
    High mode of 400 lumens gives sufficient bright light over an extended period for hiking
    Medium mode of 100 lumens offers the perfect combination of brightness and battery runtime for camp lighting
    Low mode of 10 lumens produces ultra-long runtime with reduced dazzle for night reading without disturbing others
  • Ultra compact and lightweight (head diameter: 1.3”; body diameter: 1”; length: 5.43”, weight: 110g [excluding battery])
  • Latest Smart ITS temperature control system monitors internal temperature and adjusts output for maximum brightness while protecting the LED and internal components to ensure safety, stability and optimum performance
  • Battery indicator display enables you to control usage according to remaining charge
  • Constant current circuit with no PWM dimming to prevent flickering
  • Battery low power protection automatically reduces output when the battery is almost drained, effectively preventing over-discharge and providing continued use in emergency situations.
  • Stainless Steel head and tail bezel design for better protection of internal components
  • Tactical Tail Switch with momentary-ON function
  • Physical power cut-off when in standby mode to prevent battery drainage
  • Large flat tailcap design allows flashlight to stand upright on uneven surfaces
  • Two-way detachable stainless steel clip designed to accommodate different user preferences
  • Dual springs in head and tail for improved drop and shock resistance
  • Reverse-battery protection prevents damage to both flashlight and battery
  • Aircraft grade aluminum, CNC precision machined cell, Military III hard anodic oxidation, wear resistant, portable and strong
  • Integrated head and tube design for more efficient heat dissipation
  • Durable tempered glass lens with AR film plating for scratch resistance
  • Anti-roll design prevents movement or damage to flashlight if placed on a flat surface


  • Utilizes CREE XP-L HI V3 LED with a lifespan of up to 50,000 hours
  • Output modes:
    Turbo: 1100 lumens/1hr 15min
    High: 400 lumens/5hr
    Medium: 100 lumens/18hr
    Low: 10 lumens/210hr
  • Peak beam distance: 305m
  • Peak beam intensity: 23256cd
  • Working voltage: 2.5V-8.4V
  • Compatible Batteries: 1x 18650 battery with PCB protection or 2x CR123A batteries (Do not use 16340 batteries)
  • Body colour: Black
  • Reflector: Smooth reflector
  • Switch type: Tactical Tail Switch and Side Switch
  • Dimensions:
    Head diameter: 33mm (1.3in.)
    Body diameter: 25.4mm (1in.)
    Length: 138mm (5.4in.)
  • Weight: 110g (Excluding battery)
  • Material: Aircraft-grade aluminum 6061-T6, Type III hard-anodized
  • Impact resistance: 1m
  • Waterproof: IPX8 (underwater 2 meters)
  • Lens: Toughened ultra-clear glass with anti-corrosion AR coating

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