Nitecore SRT3 Defender Multi-Color LED Flashlight (Black)

Nitecore SRT3 Defender Multi-Color LED Flashlight (Black)

Nitecore SRT3 Defender Multi-Color LED Flashlight (Black)


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Product Highlights

  • 0.1 to 550 Lumen Variable Output
  • White and Red/Blue LEDs
  • Emergency Strobe, SOS, Location Beacon
  • Magnetically-Controlled Selector Ring
  • Two-Stage Pushbutton Tailcap Switch
  • Momentary and Constant-On Modes
  • Hard-Anodized Aluminum Housing
  • IPX8-Rated, Submersible to 6.6'
  • Reverse Polarity Protection
  • Runs on RCR123/CR123/AA Batteries
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Color: Black

Nitecore SRT3 Defender Multi-Color LED Flashlight (Black) Nitecore SRT3 Defender Multi-Color LED Flashlight (Military Gray)

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Nitecore SRT3 overview

  • 1Description

The black SRT3 Defender Multi-Color LED Flashlight from Nitecore is a powerful and ultra-compact pocket-sized light that is built with military and law-enforcement use in mind. Its primary output comes from a white CREE XM-L2 U2 LED that is infinitely-variable from 0.1 to 550 lumens. A Red/Blue (RB) LED set on the edge of the reflector provides two colored output options for a reduced light signature that preserves night-adjusted vision. Press the 2-stage pushbutton tailcap switch for momentary activation, press and click for constant-on. The output intensity, color outputs, strobe, location beacon, SOS signal, and red/blue strobe, are managed using a magnetically-controlled rotating Smart Selector Ring located at the base of the head.

Built for durability, the light features an aluminum housing with a Type III hard-anodized black finish that resists scratching and corrosion. It is O-ring sealed to be IPX8-rated and submersible to 6.6', and impact-resistant to 5 feet. Its crenellated stainless steel bezel is designed to be used for self-defense, or as a window-breaker. A diamond-textured pattern is machined into the handle to provide a sure grip, especially in cold and wet weather. The included extension tube and the specialized circuitry enable the light to run on multiple battery sizes and chemistries. This versatile light has reverse-polarity protection that prevents damage to the light's circuitry if the batteries are installed incorrectly.

Light Performance
  • Low: 0.1 lumens
  • Turbo: 550 lumens max output
  • One white CREE XM-L2 U2 primary LED
  • One secondary RB LED emitter
  • Deep, smooth aluminum reflector produces smooth beam without holes or hot spots
  • Tight center cone of light with large dimmer peripheral ring
  • Strobe-mode causes temporary blindness and disorientation
  • Two colored secondary outputs:
    • Provides illumination while preserving night-adjusted vision
    • Red provides illumination to read or perform tasks
    • Blue highlights fluids, such as blood, for tracking in low-light
  • Special strobe functions:
    • SOS signal automatically cycles through Morse code sequence
    • Alternating red and blue strobe warning-mode
    • Flashing location beacon
  • Type: 2-Stage Pushbutton
  • Location: Tailcap
  • Press for momentary activation, click for constant-on
  • Shrouded tailcap helps prevent accidental activation
  • Magnetically-controlled variable output Smart Selector Ring at base of head
  • Non-incremental intensity for precise variable-output selection
  • Incremental function selection
Construction Details
  • Aluminum alloy housing
  • Corrosion and scratch resistant type III hard anodized finish
  • IPX8-rated, submersible to 6.6'
  • Crenellated stainless steel bezel can be used for self-defense or as a window-breaker
  • Double-sided anti-reflective coated and tempered lens
  • Textured diamond grip for sure handling
  • Stainless steel clip
  • Capable of running on different battery sizes and chemistries
    • Choose the type and chemistry to optimize use
    • RCR123 rechargeable battery provides maximum intensity but lowest runtime
    • Disposable CR123 batteries lowers max output but extends runtime
    • AA batteries have lowest max output but are easy to find and replace
  • Extension tube for handle allows light to accept AA batteries
  • Light will run on Li-ion rechargeable and disposable batteries
  • Reverse polarity protection
In the Box
Nitecore SRT3 Defender Multi-Color LED Flashlight (Black)
  • Clip
  • Holster
  • Lanyard
  • 2 x Spare O-Rings
  • Spare Tailcap Pushbutton Cover
  • Extension tube to accept AA/14500 batteries
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description

    Nitecore SRT3 specs

    Lumen Output RCR123A
    High: 550 Lumens 
    Low: 0.1 Lumen 
    Illumination Source 1 x LED
    1 x Multi-Color LED
    Estimated Runtime CR123A
    High: 1.25 Hours 
    Low: 200 Hours 
    Battery Type 1 x RCR123A or
    1 x CR123A or
    1 x AA or
    1 x 14500
    Material of Construction Aluminum
    Water Resistance Waterproof to 6.6' / 2 m, IPX8
    Impact Resistance Yes, 5.0' / 1.5 m
    Bezel Diameter 1.0" / 25.4 mm
    Dimensions : 1.0 x L: 3.9" / : 2.5 x L: 10.0 cm
    Weight 2.6 oz / 73.0 g (Without Batteries)
    Packaging Info
    Package Weight 0.335 lb
    Box Dimensions (LxWxH) 6.65 x 3.95 x 1.35"

    Nitecore SRT3 reviews

    SRT3 Defender Multi-Color LED Flashlight (Black) is rated 4.6 out of 5 by 5.
    Rated 5 out of 5 by from The Perfect Size This light blew me away. I use a flashlight for work everyday. I need something that I can access easily, and turn on with one had. There are several products out there that offer that functionality, but the SRT3 Defender has a TON of extra features and the brightness to make it an absolute must have. Not only does it have a dimmer built in, but it offers a blue light, and red light. I have found when I'm working in low light, sometimes I don't want the FULL power of the flashlight. The blue light really works well for that situation, as well as a dimmer on the regular light.
    Date published: 2014-02-06
    Rated 5 out of 5 by from Very nice torch Great light with lots of features. I really like the control ring interface. It is not as smooth feeling as my SRT7, but not bad at all. I also like the dual battery capability. It is on the big side, but I knew that going in. I wish the strobe was a little slower and it had green lite capability like the srt7. Over all Im very happy with this flashlight.
    Date published: 2014-11-09
    Rated 4 out of 5 by from My 2nd Nitecore SRT3. The 1st one was helpful for over a year under extreme conditions (SAm motorcycle trip). After that the electronics smoked. Bought it again, though. Very handy and capable. Using it with a nitecore CR123 recharchable.
    Date published: 2017-07-30
    Rated 4 out of 5 by from Very good EDC light I'm very pleased with this light. Compact, versatile and bright!
    Date published: 2015-01-16
    Rated 5 out of 5 by from Great Flashlight All the features you'd want plus multiple battery choices.
    Date published: 2014-11-29
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