From: scientist77017@gmail.com   
      
   On Friday, August 9, 2019 at 6:21:27 PM UTC-5, Phil Allison wrote:   
   > AK wrote:   
   > >   
   > > I bought some 12 VDC 5 mm red leds.   
   > >   
   > > They work find but...   
   > >   
   > > when I touch the wires going into the led, they were hot enough that I had   
   to remove my hand.   
   > >   
   > > That does not seem normal.   
   > >   
   >   
   >  ** The heat is from a resistor in series with the 5mm LED.   
   >   
   >  Red LEDs only take 1.7 volts so the rest is dropped by a resistor.   
   >   
   >   
   > ..... Phil   
      
   I found out that the led is actually 9 volt.   
      
   It was labeled at 12 volts which was way too much.   
      
   After switching to 9 volts, it runs much cooler.   
      
   Andy   
      
   P.S. I wonder if the Chinese fighter jets have similar mistakes. :-)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)