[ExI] Power factor

Brent Neal brentn at freeshell.org
Fri Nov 27 04:47:32 UTC 2009

On 25 Nov, 2009, at 22:26, Keith Henson wrote:

> and I don't understand what Brent is talking about.  Can you explain?

CFLs lead in phase due to an either real or effective capacitor in the  
ballast, as I understand it.  Therefore, you want to include an  
inductor in the circuit to bring in back in phase and the power factor  
back up to 1. Most CFLs produced today have a 0.5-0.6 PF.

Keith, you're an EE, aren't you? You should know power factors and  
phasors better than I do. Physicists are dirty hacks compared to EEs  
when talking about this stuff. :) Most of my info comes from an EE who  
works in designing lighting systems.


Brent Neal, Ph.D.
<brentn at freeshell.org>

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