Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: sci.electronics.repair Subject: Re: Flashlight runs even when off Date: Fri, 13 Mar 2026 14:07:01 +0100 Lines: 24 Message-ID: References: <3n06rkljpptlhuu7n1kij2puiqpje24vh3@4ax.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net rNeOsRkBjCdw3K0sPbZ0pwcIcUKmWxURj/DwgtIlJEmkAuneoN X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:PihADdLqcglow/9z8qVybIID1Ek= sha256:duGqlTvBqeN8uqINIVmpy33Pr+sk7+V7mJrdvGv8EKI= User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: <3n06rkljpptlhuu7n1kij2puiqpje24vh3@4ax.com> X-Leafnode-NNTP-Posting-Host: 127.0.0.1 Xref: csiph.com sci.electronics.repair:101801 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🇪🇺;