I wonder if any Olight owners can clarify something about their specs.

Take the i5t for example:

  • Level 1: 300-150-30 lumens, 3+25+122 minutes.
  • Level 2: 15 lumens, 20 hours.

Those measurements for Level 1, does the torch abruptly step down to the next luminosity, or are those readings more like samplings of a smooth discharge curve?

Thanks

  • Gott@lemmy.mlEnglish
    3·
    1 year ago

    It abruptly steps down. It is solely dependent on the timing also, so it will always step down exactly the same.

    • vext01@lemmy.sdf.orgOPEnglish
      2·
      1 year ago

      Interesting. So the throttling isn’t to do with battery voltage, but time.

      Is this to stop the torch overheating?

      What happens if you run it in high mode until it throttles, then later switch back to high mode?

      • Gott@lemmy.mlEnglish
        3·
        1 year ago

        Ya, it’s just based on time. If the battery is low enough it will throttle from that sooner. I’m pretty sure switching back to high mode resets the timer until temperature or battery voltage starts contributing to throttling. I could be wrong on that, I don’t use my olights super often.

  • Zak@lemmy.worldMEnglish
    2·
    1 year ago

    Expanding a bit from what you asked, you’ll find lights with the following behaviors with regard to battery voltage:

    • Output is the same in all modes regardless of battery voltage
    • Output is limited by battery voltage in maximum or near-maximum modes, but unaffected in other modes
    • Output is proportional to battery voltage in all modes

    And when the battery gets low, you might see any of the following

    • The light turns off from full brightness
    • Brightness is reduced suddenly providing a low-output reserve mode
    • Brightness decreases as the battery nears empty, shutting off when a limit is reached
    • Brightness decreases as the battery nears empty, but does not intentionally shut off, which can damage Li-ion batteries