Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

donate to eham
   Home   Help Search  
Pages: Prev 1 [2]   Go Down
  Print  
Author Topic: Looking for low noise LED light strips  (Read 2444 times)
VK2LEE
Member

Posts: 57


WWW

Ignore
« Reply #15 on: October 18, 2018, 02:36:44 AM »


Hi, I  have strip LEDs around My shelves, I use a 12 volt DC Mirrabella brand of transformer that was made for the early 12 volt down lights. It is NOT a switch mode.. I also use a dimmer with it... with no problems.  I have used many of the clip on ferrite core shields on all the leads... No Noise at all now...Lee   VK2LEE 
Logged

28 years as VK2LEE - The 1st 3 letter L call ever issued - in 1986 -
ZENKI
Member

Posts: 1648




Ignore
« Reply #16 on: November 04, 2018, 04:58:01 PM »

Try and find some of the newer COB (chip on board) design LED lighting products, these have less EMC issues than the old LED lighting designs that  you typically find dumped on ebay.

COB LED's produce better light efficiency hence need less energy intensive filthy switch mode power supplies.  The new generation of COB LED drivers also have much better EMC performance than the older generator of spark gap generator driver designs.

On some of the latest COD 230AC LED floodlights that i have tested i cant detect any emissions that are radiated from 0hz to 1ghz, they are very clean because in many cases there is no driver.
Logged
Pages: Prev 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!