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Thread: Surefire shock isolation bezels

  1. #1

    Default Surefire shock isolation bezels

    Do these offer any benefits in this day of LED lights? I mean, they look great, but is there any other reason to run one?

  2. #2
    Flashaholic* altermann's Avatar
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    Default Re: Surefire shock isolation bezels

    Yes they do, doesn’t matter led or incan light source, not for civilians or hunters, but for military operators who shot 200-300 rounds per day

  3. #3
    Flashaholic*
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    Default Re: Surefire shock isolation bezels

    Nope. Not what you want with a LED. Shock isolation means no effective heat sinking. Potted circuitry is modern shock isolation, as now the concern would be protecting the circuit vs. before, when the weak link in the chain was an incandescent bulb's filament.

  4. #4

    Default Re: Surefire shock isolation bezels

    Quote Originally Posted by altermann View Post
    Yes they do, doesn’t matter led or incan light source, not for civilians or hunters, but for military operators who shot 200-300 rounds per day
    Quote Originally Posted by Owen View Post
    Nope. Not what you want with a LED. Shock isolation means no effective heat sinking. Potted circuitry is modern shock isolation, as now the concern would be protecting the circuit vs. before, when the weak link in the chain was an incandescent bulb's filament.
    Do you guys know if the spring on both ends of the battery versus just on the negative side helps with resilience to impacts and such? Does it at least matter with a weapon mounted light?

  5. #5
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    Default Re: Surefire shock isolation bezels

    Sure. Springs and "battery bumpers"(o-rings) protect both the cells and switch from damage in the event of impact, whether from recoil or a fall.

  6. #6
    Flashaholic* altermann's Avatar
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    Default Re: Surefire shock isolation bezels

    Quote Originally Posted by Owen View Post
    Nope. Not what you want with a LED. Shock isolation means no effective heat sinking. Potted circuitry is modern shock isolation, as now the concern would be protecting the circuit vs. before, when the weak link in the chain was an incandescent bulb's filament.
    Potted circuitry is not all the parts in flashlights, shock isolation system works perfect in 951’s with led dropins

  7. #7
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    Default Re: Surefire shock isolation bezels

    Of course it "works". The question was whether it offers benefits, which it doesn't. If the dropin uses a spring like a P60L(and most aftermarket ones), as opposed to direct contact to the body like a Malkoff, which still isn't ideal with a spring washer, there's no effective thermal path to the body, so the LED is getting roasted in its own heat if used for any length of time.

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