[Elecraft] LED Lamps and HF RFI?

Edward R Cole kl7uw at acsalaska.net
Tue May 12 12:06:38 EDT 2015


One more datum for this "survey":

I bought one 60w equivalent LED bulb for replacement in my ceiling 
fixture in the room which serves as my ham shack.  That places it 
about 5-feet from my radios.  I bought it from Home Depot and is a 
CREE LED listing 800 lumens at 5000K and uses 9w.  It has the 
built-in base PS and screws into a standard light fixture.  CREE 
lists life for 22.8 years at 3-hour/day usage and has limited 
warranty for ten years.  Cost $11.98

I am seeing NO RFI from it on HF to mw frequencies.  I will start 
replacing several of our cheap GE incandescent bulbs with the CREE; 
average life for the 50cent GE's is 30-days.  Break even is 24-months 
on cost without taking into consideration energy savings.

73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
Dubus Mag business:
     dubususa at gmail.com



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