home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   alt.engineering.electrical      Electrical engineering discussion forum      2,547 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 1,993 of 2,547   
   m-m to gfretwell@aol.com   
   Re: Dimmer for 4V LED   
   30 Jun 18 22:28:53   
   
   From: nospam-m@nym.ore   
      
   Good starting point.  Thanks.   
      
      
      
   In article ,   
    wrote:   
      
   > On Fri, 29 Jun 2018 00:13:06 -0400, m-m  wrote:   
   >   
   > >I have a 4V, 0.75A, 3W power adapter (120V input) that powers a single   
   > >LED that is too bright.   
   > >   
   > >Is there a way to make or purchase a dimmer that could work on the low   
   > >power side?   
   > >   
   > >Thanks   
   >   
   > A resistor should work until you reach the point that the LED goes   
   > out.   
   > Without knowing the specs on the LED or the current it is running at I   
   > am not sure where to start with the resistor but I would shove 10 ohms   
   > in there and see what happens. Then work up or down from there.   
      
   --   
   m-m   
   www.mhmyers.com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca