What LED Bulbs avoid EMI/RFI interference?

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CoraDias
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Joined: 03/20/2018 - 11:16
Hi...i am a new user here. As

Hi...i am a new user here. As per my observation it seems interference comes into play with 120 Volt LED bulbs designed for home use. These bulbs have some type of transformer or other schema to reduce the voltages down to the point that the LEDs will operate at and the transformer is what actually causes the interference.

 

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ac0gv
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Joined: 09/22/2016 - 13:57
RFI due to LED bulbs

Don't forget, your TVs and Cell phones are jammed also. I have banned all LED lights from my house, had them jam my garage door openers as well. I still have a large batch of LEDs to install in the Scamp, I'll see. I was told that the lamps that run on a wide voltage range are a problem so ordered the cheap 12 VDC only.

ReidHao
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Joined: 11/30/2018 - 12:15
As per my knowledge this is

As per my knowledge this is because of interference comes into play with 120 Volt LED bulbs designed for home use. These bulbs have some type of transformer or other schema to reduce the voltages down to the point that the LEDs will operate at and the transformer is what actually causes the interference.

Derswede
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Last seen: 4 years 3 weeks ago
Joined: 10/03/2019 - 19:28
LEDs

Another ham here.  I actually buy the LED's and wire them myself.  Cheap and easy.  Much brighter and no interference.  Look for 12V leds and run them off the 12V system. I use the existing housings and just replace the bulb. A few are gooseneck 12V lamps I bought a few years ago (do not remember the source, sorry).  Nice to have directed lights.  The 110V units mostly have what is called a "Switching power supply" in the base.  That is what causes the interference.  "Wall-Wart" chargers can do the same thing.  Had a USB charger plugged in near our home TV, it made such an RF racket that a cell phone would lose signal near it.  Once I isolated it, I took it outside and hammered it into oblivion. The comments about using an AM radio to find the problem is a good one.  For 12V lamps, just straight wire them in.  Autoparts stores carry the typical bayonet and socket style bulbs as well as Walmart.

 

Derswede

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