SureFire Unveils Auto-Adjusting Flashlight: The New Fury with IntelliBeam Technology

Surefire has an interesting new entrant into the flashlight market–a flashlight that auto adjusts based on ambient light, from 15 to 600 lumens.

This new Fury with proprietary IntelliBeam Technology (P2XIB)­ features an intelligent sensor and microprocessor-based system that continuously and seamlessly adjusts light output by constantly evaluating your surroundings. This model always delivers the right amount of light for the task at hand.

This cutting-edge technology also helps preserve dark-adapted vision by evaluating the environment before turning on, so it never activates on high in close quarters. If you’re in an open field, you’ll get all 600 lumens. If you’re prepping gear or loading a vehicle, it will dial in the necessary output based on the environmental feedback it receives, down to as little as 15 lumens. Just press or click the tailcap switch to engage this auto-adjusting mode. To override this mode, simply return to off and press or click again within one second to activate the max-output/tactical mode. This second press or click locks in all 600 lumens where maximum output is needed. The P2XIB defaults to IntelliBeam mode when it’s off for more than one second.

I wonder how much the sensor technology affects the battery life?  And while it is a neat idea, I can’t agree with the idea that white light (of ANY level) will preserve “dark adapted vision”.  It may not fully blind you, but I would argue that you are going to lose night vision even at 15 lumens.  That said, I think it would serve purpose in a non-tactical environment.  Thoughts?  What do you readers think?


  • Output High: 600 Lumens
  • Output Low: 15 Lumens
  • Runtime High: 1.5 hrs
  • Runtime Low: 45 hrs
  • “Tactical Runtime”: 1.5 hours (max until lumens drop below 50)
  • Bezel Diameter: 1.37 in
  • Body Diameter: 1 in
  • Length: 5.4 in
  • Weight: 5.7 oz
  • Finish: Mil-Spec Type III Hard Anodized
  • Batteries: 2 x 123A
  • MSRP:  $229.00

Phil Note: We have one ordered for review.

Tom is a former Navy Corpsman that spent some time bumbling around the deserts of Iraq with a Marine Recon unit, kicking in tent flaps and harassing sheep. Prior to that he was a paramedic somewhere in DFW, also doing some Executive Protection work between shifts. Now that those exciting days are behind him, he has embraced his inner “Warrior Hippie” and assaults 14er in his sandals and beard, or engages in rucking adventure challenges while consuming craft beer. To fund these adventures, he writes medical software and builds websites and mobile apps. His latest venture is as one of the founders of; a search engine for all things gun related. He hopes that his posts will help you find solid gear that will survive whatever you can throw at it–he is known (in certain circles) for his curse…ahem, ability…to find the breaking point of anything.


  • Swarf

    $230 for a torch that would piss me off by trying to make decisions for me?

    No thanks.

    • Taylor TX

      My first thought as well, “Oh great it thinks it should be dim, AGAIN.” Love the scout light if youre willing to drop the cash.

    • Phil Hsueh

      The auto-dimming/brightening feature is optional, optional in the sense that you don’t have to use it if you don’t want to. Of course, to activate it you have to use the same button as you do to turn the flashlight on, as someone elsewhere said, it would have been better if they made this function activate from another button or switch somewhere else on the light.

  • Plumbiphilious

    I’m not sure how well this will go down. I know that transition eyeglass-sunglasses piss off their users to no end. I have a feeling this will be the same way.

    Heck, my cell phone screen dimmer already knows how to do this (badly) and it annoys the crap out of me, especially if my fingers are in the way.

  • Budogunner

    Electronically, the auto brightness feature is stupidly simple. The phrase “proprietary IntelliBeam Technology” made me roll my eyes. Sounds like a desperate marketing gimmick.

    • Laserbait

      Really? Have you seen the circuit or the programming that controls it? Or are you assuming that it’s just a simple photoresistor?

      • Budogunner

        It is obviously more than a photoresistor as the press release mentions a microprocessor. It is still a trivial feature to implement. Are you saying you find it complex?

        If they DID implement it in an expensive and/or complex way, they did something wrong.

        • Laserbait

          Trivial, yet you don’t know anything about it, other than it has a microcontroller. I get it now.

          No, I haven’t seen it. I just have a background in microcontrollers & programming.

          • Budogunner

            The point is that a microcontroller for something this simple is overkill and therefore not impressive. It wouldn’t even really be impressive if implemented with hardware only.

            It is a freaking dimming flashlight. If that impresses yout I don’t know what to say.

            These days some middle schools use cheap arduino microprocessors to teach programming. Adjusting brightness of an led based on sensor input is on the level with “Hello World.” Check out the fader code example at to see how simple PWM can be.

            I admit, when I learned that some kids are staying to code so young I felt very, very old. Imagining people are impressed by a dimming flashlight makes me feel older. I blame Apple. They want people to think ANYTHING computer related is black magic and voodoo. They even make you go to a store to talk to a “genius.”

            One of the first rules of UI Design is don’t make the user think. I swear, sometimes I think we have done such a good job in the industry that people no longer can.

          • Laserbait

            I’m sorry you feel old. It’s gotta suck.

  • Laserbait

    That’s awesome! I’ve been waiting for them to come out with something like this. I almost never need “tactical” output, and I dislike having to fiddle with modes. I hope it works as good as I hope it will.

    • Swarf

      It won’t.

      • Laserbait

        I’m sure you know this from your extensive use of the product.

        • Swarf

          Easy there, chuckles. It was a joke.

          I don’t know about you, but damn near nothing works quite as well in reality as it does in my head.

  • Ratcraft

    The day I pay $230 for a flashlight is the day God should strike me dead for not feeding to poor…. are you joking with that price? It’s a flashlight!

  • JJTX

    Ohhhhhhhhhhhhhh Heeeeeeeeeeeeeel nooooooo

  • rayward

    So, I’m in a tactical situation — lives on the line — and I’m going to delegate decisions on lighting to a FLASHLIGHT??? I think not.

    • Andrew

      Precisely why its not a tactical flashlight… I didn’t see them calling it the gunfighter light or them even say ANYTHING about using it in a tactical situation?

  • Mystick

    Move away from CR123’s already…. make some 18650 stuff…. or even 18350! I know you have 123 batteries with your name on them, Surefire, but call up Panasonic and put your name on their Li’s!!! Everybody else does!