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Independent Dual Switch Operation
The ST15R Night Guardian is the newest of Klarus' rechargeable flashlights and the only one you will ever need. With the extended run times and four different brightness modes, this light is perfect for a wide range of tasks and environments. The advanced CREE XP-L HD V6 LED and high quality aluminum reflector provides up to 1200 lumens that can reach up to 260 meters away. For instant ON/OFF, the tail switch has an easy one-touch operation mode.

To change modes, press the side switch once to access the four levels of brightness. In emergency situations, access the signaling modes by simply double pressing the side switch for strobe, beacon or SOS settings. The side switch is comfortable and easily located with a bare or gloved hand. These switches operate independently of one another, but also offer a memory function to return instantly back to the setting you use most.

Comfort and Durability
The ST15R Night Guardian is not only known for its power, but also its precision machined body, components, and sheer comfort in one-handed operation. The body is made from tough aerospace aluminum alloy and is protected by a high quality hard anodized finish allowing this flashlight to be scratch, corrosion and drop resistant as well as waterproof.

The unique spiral knurling allows a firm and comfortable grip whether your hand is bare, sweaty, or protected by a glove. This light is ideal for outdoor or everyday use and can be used to optimize any situation or task where you need illumination.

Intelligent Charging and Thermal Protection Systems
This flashlight has the advanced systems you need to keep your light running efficiently. The ST15R features an intelligent thermal system that protects components and LED functions by monitoring and adjusting temperature and brightness levels. This ensures the stability and safety of your light for a longer life and more efficient performance.

Its advanced charging system allows for a rapid recharge because of the 1A charging current as well as real-time monitoring of your battery and its remaining capacity. The side switch doubles as your battery and charging level indicator. When you first activate your flashlight, the side switch will glow different colors to keep you aware of your remaining battery or charging status. Never worry about overcharging, reverse polarity, or questioning your remaining battery power left again.

Always By Your Side
The ST15R Night Guardian comes with all the accessories you would need for a number of adventures. Use the clip for easy carry and draw, whether on your hip, pocket or bag. Take to the trails easily with the included bike mount! The included diffuser is great for camping or night reading as it transforms your flashlight into a wider illuminating miniature lantern. With all this included, there is no reason to be left in the dark on your next adventure. Let us show you why you will want this new Klarus to be your personal Night Guardian.



  • CREE XP-L HD V6 LED with max output up to 1200 lumens
  • Compact size, lightweight, comfortable grip, CNC precision machined aluminium reflector with high reflective efficiency, max beam distance up to 260 meters
  • Ultra-long runtime, max runtime up to 8.3 days
  • Easy and convenient operation, ON/OFF tail switch, side mode switch, each has independent operation
  • Strobe, Signal lighting and SOS for emergency uses
  • Single click side switch to turn ON/OFF the flashlight during charging for emergency use
  • Micro-USB charging port with protective cover, waterproof and dustproof
  • Charging current up to 1A, faster charging
  • Intelligent Battery Identification Systerm (IBIS): real-time monitoring of charging status to prevent overcharging, ensuring optimum charging status
  • Intelligent Thermal Protection System (ITS): monitors internal temperature and adjusts brightness to protect LED and internal components to ensure safety, stability and optimum performance.
  • Ring Battery Capacity Indicator: check remaining battery capacity at any time.
  • Unique flashlight body texture design, comfortable even in sweaty grips
  • Stainless bezel ring offers protection for crucial components
  • Springs at bezel and tail end resist shock and drop damages.
  • With mode memory function
  • Reverse Polarity Protection eliminates damage from incorrect battery orientation.
  • Aerospace Aluminium Alloy body with CNC machining; Mil-spec hard anodising (HA III); lightweight yet robust construction.
  • Included Accessories:
    • 1 x Li-ion 18650 2600mAh Battery
    • 1 x Micro-USB Cable
    • 1 x Lanyard
    • 1 x Spare O-Ring
    • 1 x Pocket Clip
    • 1 x Bike Mount
    • 1 x Diffuser
    • 1 x User Manual



  • LED: CREE XP-L HD V6 LED with 50,000 hour lifetime
  • Power Source: 1 x 18650 or 2 x CR123A or 2 x Klarus 16340 (18650 Li-ion 2600mAh Battery Included)
  • Peak Beam Distance: 260 meters (853.02 ft.)
  • Peak Beam Intensity: 1200 lumens/16900 cd
  • Brightness Outputs:
    • Turbo: 1200 lumens - 1.5 hours
    • High: 400 lumens - 4 hours
    • Medium: 100 lumens - 18 hours
    • Low: 10 lumens - 200 hours
    • Strobe: 1200 lumens - 3 hours
    • Beacon: 100 lumens - 108 hours
    • SOS: 100 lumens - 54 hours
  • IPX Rating: IPX-8 (Submersible up to 2 meters)
  • Impact Resistance: 1 meter (3.28 ft.)
  • Dimensions:
    • Length: 5.59" (142 mm)
    • Head Diameter: 1.30" (33 mm)
    • Body Diameter: 1.00" (25.4 mm)
  • Weight: 3.74 oz. (106 g) Without Battery