XPost: uk.d-i-y, alt.home.repair, alt.sci.physics   
   From: robert@invalid.invalid   
      
   On 03/10/2019 14:29, Commander Kinsey wrote:   
   > Why do LEDs generate heat? I want a technical answer not "because   
   > they're inefficient". And will we ever make them more efficient?   
   Besides the inefficiencies in the LED itself which other posters have   
   covered, LED lamps have some current regulation or power supply built-in   
   which will not be 100% efficient and thus generates heat.   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)