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.


    • Lightweight and compact for easy carry and use
    • Extremely long run times for extended use
    • CREE XP-L HD V6 LED provides a lifetime use of up to 50,000 hours
    • Max brightness of 1200 lumens reaching up to 260 meters
    • Precision spiral knurling for a comfortable, secure grip
    • Four brightness levels and three signal lighting modes for emergency situations
    • Dual switches that operate independently of each other for convenient operation
    • Built-in Micro-USB charging port with protective cover
    • Capable of being used during charging for emergency use
    • Intelligent battery monitoring system for real-time charging status and protection during charging
    • Internal temperature protection system to protect components and ensure quality performance
    • Mode Memory Function to go back to your preferred brightness setting instantly
    • Made from Aerospace Aluminum Alloy and military grade hard anodizing finish for durability
    • IPX-8 waterproof rating for use in any weather conditions
    • Double spring construction to resist shock and drop damages
    • Klarus 5 Year Warranty


    • 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
    • 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
Klarus ST15R Night Guardian

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