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Thread: How to tell the specs on an HDS light

  1. #1
    Flashaholic*
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    Default How to tell the specs on an HDS light

    Can you use the light's serial number to get the output in lumens and the emitter and tint types?
    If not, how?
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  2. #2
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    Default Re: How to tell the specs on an HDS light

    The colored paint circles on the head spring contact pad will tell you the lumens. There is a chart floating around here from Hogo. The emitter is harder to identify, especially since there were some emitters with a few different bins released. A very good picture of it posted should get you close - some of the members are pretty good at identifying LEDs.

  3. #3
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    Default Re: How to tell the specs on an HDS light

    Since numbered bezels can be and often are swapped or replaced, those may not remain with the original light.

    I think there is a way to get the emitter to blink out the firmware revision, but doubt that may be specific enough to narrow it to the exact emitter version.
    ... is the archimedes peak

  4. #4

    Default Re: How to tell the specs on an HDS light

    Quote Originally Posted by archimedes View Post
    Since numbered bezels can be and often are swapped or replaced, those may not remain with the original light.

    I think there is a way to get the emitter to blink out the firmware revision, but doubt that may be specific enough to narrow it to the exact emitter version.
    If you go to the bottom of the FAQ. https://www.hdssystems.com/Content/LightFaq/
    and look at. What version of software is in my flashlight? That will tell the software version, but nothing else.
    The only reason there is a serial number on the bezel is for when a light comes in for repair so we can keep track of it and send it back to the correct person.
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  5. #5
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    Default Re: How to tell the specs on an HDS light

    Thanks for adding those details, Hogo
    ... is the archimedes peak

  6. #6

    Default Re: How to tell the specs on an HDS light

    Quote Originally Posted by hatman View Post
    output in lumens and the emitter and tint
    short answer:

    colored ring on the positive battery contact in the head tells lumens
    the LED and labeled mcpcb tell Color Temperature and LED type

    ---
    long version

    the packaging lists the LED type, Color Temperature, and lumens. HDS does not list Tint nor Throw info.


    the colored ring tells you lumens,
    "The calibrated light output can be determined by the colored ring (or lack of one) on the positive contact. 100 lumens is yellow, 120 lumens is either green or no ring with "everyday carry" on the bezel, 140 lumens is either blue, white (GT) or no ring, 170 lumens is purple, 200 lumens is red, 250 lumens is orange and 325 lumens is yellow. "

    knowing the lumens narrows down the possible LEDs

    plus the nickname HDS uses for the LED is noted on the mcpcb

    for example, this is an xp-g2 (which means it is a 250 lumen calibrated output of Low CRI)


    other examples of HDS LED codes:
    NB4 = Nichia 219b 4000k. These are always 200 luments, Hight CRI
    SST40 = SST-20 4000k. These are always 225 Lumens, High CRI
    NBOR= Nichia 219b Oveready 170 lumens
    Last edited by jon_slider; 09-15-2020 at 11:40 AM.

  7. #7
    Flashaholic* lion504's Avatar
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    Default Re: How to tell the specs on an HDS light

    Another great post by slider.
    “Experts” are wrong about half the time. And there are two reasons for the crenelations... [My_Lights]


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