[RFI] CFLs and LEDs

George Gorsline VE3YV ve3yv at pathcom.com
Wed Nov 12 13:55:28 EST 2008

FWIW - I have CFLs throughout the house and also at the cottage.  No 
issues with RFI, but as noted cold start in the winter (before the wood 
stove heats the cottage up) will give you slow firing and gradual 
increase to normal brightness.  They're getting nicer now that warmer 
temperatures (colours) are available.  Early purchases didn't have good 
life - lots of premature failures.  Note that the fine print says that 
they aren't to be installed in enclosed ceiling fixtures - where most of 
my failures have been.  Surprising given much lower heat buildup versus 
incandescent.  Would prefer to use LEDs when the price comes down as 
while CFLs have lower energy consumption, they create a mercury disposal 
LED Christmas lights seem to be RF quiet - at least relative to the 
existing noise floor of downtown living.  And in Toronto, the hydro 
(power) company gives them away free every year - one string for every 
two of the old style turned in.  The one LED RFI problem I've observed 
is probably a crummy power supply design in flashing "DON'T WALK" 
countdown LED displays at some intersections in the downtown core.


73,  George VE3YV / K8HI

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