Caravans and LED lights.
Submitted: Sunday, Jul 17, 2011 at 18:37
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burnsy
I have just replaced our halogen globes with LED's and find that now when any of the lights are turned on we loose TV reception in both digital and analogue.
Has any body come across this dilemma and is there a affordable fix for it.I am sure there is somebody in the brains trust that can help.
I have looked around and found that LED's can give off some RF and
I'd like to add that I bought these locally and not the so called cheap ones available on the net so I will give the store a call tomorrow and see if they can help
Reply By: Member - joc45 (WA) - Sunday, Jul 17, 2011 at 19:52
Sunday, Jul 17, 2011 at 19:52
Hi Burnsy,
There are generally two types of 12v led. Those with a switching regulator to drop the voltage and limit the current, and those which just use a resistor to limit the current. The switching regulator switches at a high frequency and generates RF noise, rather like 12v flouros do. The latter are not quite as efficient, but generate no RF noise.
I suspect that the strip led lights use resistors and are quiet. The halogen replacements generally use 3 leds in series with a switching regulator.
These won't plug into your halogen socket, but might be a useful alternative:
LED downlightDome light replacement
These are ex-China and quite cheap and use groups of 3 leds in series with a current limiting resistor. I use the latter in the dome light of my wagon, and it's very
bright. They also sell a whole range of halogen replacements very cheaply.
I've made up some decent 10w camping leds using switching regulators from the same source, and they generate a small amount of RF noise, but nothing to worry me.
Cheers, Gerry
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Reply By: David l3 - Monday, Jul 18, 2011 at 12:23
Monday, Jul 18, 2011 at 12:23
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