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LED flashlights gone??

Discussion in 'Electronic Design' started by BFoelsch, Mar 4, 2007.

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  1. BFoelsch

    BFoelsch Guest

    Gee, what happened to all those guys that were building LED
    flashlights in Altoids tins?, Watson et al?

    They were a big presence here a year or so ago.

    Perhaps they started their own group?

    Curious in Connecticut.
     
  2. Si Ballenger

    Si Ballenger Guest

    They probably decided to just go to WalMart and buy one for a
    couple of bucks and move on in their lives. ;)
     
  3. maxfoo

    maxfoo Guest

  4. BFoelsch

    BFoelsch Guest

    Yes, I know where to get flashlights.

    I was jusr curious about all the whereabouts of all the experimenters.
    They kept this group hopping many a cold winter night...
     
  5. John E.

    John E. Guest

    BFoelsch sez:
    The Chinese influx.
     
  6. Perhaps.
    But good, cheap, well built high intensity flashlights are still rare.
    I own one a 1.5W Aurora flashlight I bought a couple of years ago for
    $40. The best I've ever owned.

    The latest ones look even better:
    http://www.all-battery.com/browseproducts/5-Watt-Luxeon-LED-Flashlight.html

    --
    Dirk

    http://www.onetribe.me.uk - The UK's only occult talk show
    Presented by Dirk Bruere and Marc Power on ResonanceFM 104.4
    http://www.resonancefm.com
     
  7. James Arthur

    James Arthur Guest

    Run off by the flames, mostly. Watson appears from time-to-time in
    s.e.b., methinks, and has a flashlight building blog out there
    somewhere in cyberspace.

    Ahh, here it is:
    http://watsonseblog.blogspot.com/

    Best wishes,
    James Arthur
     
  8. Hell, I'm still at it! Getting a Luxeon K2 emitter running from a
    tabaco tin is amazing - its a lot brighter than the cheapo ones.

    There's not much room in a tin for batteries and an current source and
    the lamp though so run time is pretty limited.
     
  9. IMO the problem is designing a good case.
    The electronics seem simple these days.

    --
    Dirk

    http://www.onetribe.me.uk - The UK's only occult talk show
    Presented by Dirk Bruere and Marc Power on ResonanceFM 104.4
    http://www.resonancefm.com
     
  10. Jim Yanik

    Jim Yanik Guest


    IIRC,there's an online forum for LED flashlights.
    ....there are so many driver ICs to choose from these days.
     
  11. Boris Mohar

    Boris Mohar Guest

    http://www.candlepowerforums.com/



    Regards,

    Boris Mohar

    Got Knock? - see:
    Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

    void _-void-_ in the obvious place
     
  12. Joerg

    Joerg Guest

    Maybe their dentists told them not to eat so many Altoids?
     
  13. ehsjr

    ehsjr Guest


    How many can one build? Here you go:

    20t
    +------+------+---COIL-----+-----+
    +| | +| | |
    --- [4.7K] [100uF] | |
    | | | | /c |+
    |AAA| +------+----------| [LED]
    | | \e |
    --- | |
    | | |
    +--------------------------+-----+

    Red, NPN, air core, 5/8" diameter

    Ed
     
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