THD In Light Bulbs


I have replaced a 40w incandescent light bulb with a 12w LED light bulb. The new LED is way brighter. In fact, the box says that it's a 75w equivalent. The box also shows something interesting:

Power Factor >.90  
THD: <35%

I've read that LEDs are essentially diodes. How does this affect noise in the mains? Do LEDs inject more, less, or the same amount of THD into the mains as incandescent/fluorescent lights? 
c_avila1

Showing 1 response by clearthink

audiozenology"That is a link to a highly technical article, that is itself really only applicable to one IC / control architecture. Most EEs would not understand the subtleties of it"


It’s much more science-based, factual, and authoritative than sites such as wikpedia and it’s level of math is well within that which a real EE could understand it’s not fair to dismiss with "a wave of the hand" real science just because it might confuse some and even you perhaps!