Re: Flashlight runs even when off

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From	"Carlos E.R." <robin_listas@es.invalid>
Newsgroups	sci.electronics.repair
Subject	Re: Flashlight runs even when off
Date	Fri, 13 Mar 2026 14:07:01 +0100
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On 2026-03-12 22:47, micky wrote:
> I have several little LED flashlights, 2 1/2" long and 7/8" in diameter,
> and on one the pushbutton switch on the end broke. OK.  But yesterday I
> notice that on another, my favorite one because the light was so bright,
> even after I turned if off, it was still casting some light.  I
> unscrewed the end with the switch and the resistance, when the switch is
> off if 168K ohms.  Turned it on and off and it was 145K ohms.  on the
> 200K ohm scale.  On the 2M ohm scale, it was 1.7M ohms.
> 
> Even the lowest of these values seems to limit the crrent too much to
> get light out of an LED.  What do you think about all this .

I have a very bright small flashlight that after some months would not 
fully power off, it gave a faint gleam. It is of the type that pressing 
the power button makes it cycle between several output intensities. It 
can even flash SOS in morse.

Soon after not fully powering off, it developed other problems, like not 
switching on. I complained on Amazon, because it was an expensive thing, 
and got it replaced for free. I hope the replacement doesn't fail.

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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Thread

Flashlight runs even when off  micky <NONONOmisc07@fmguy.com> - 2026-03-12 17:47 -0400
  Re: Flashlight runs even when off "Carlos E.R." <robin_listas@es.invalid> - 2026-03-13 14:07 +0100
  Re: Flashlight runs even when off Miguel Gimenez <me@privacy.net> - 2026-03-13 17:01 +0100
    Re: Flashlight runs even when off micky <NONONOmisc07@fmguy.com> - 2026-03-13 21:59 -0400
      Re: Flashlight runs even when off Miguel Gimenez <me@privacy.net> - 2026-03-15 13:15 +0100
      Re: Flashlight runs even when off Jeff Liebermann <jeffl@cruzio.com> - 2026-03-15 09:58 -0700
        Re: Flashlight runs even when off ehsjr <ehsjr@verizon.net> - 2026-03-15 17:38 -0400

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