Caravans and LED lights.
Submitted: Sunday, Jul 17, 2011 at 18:37
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87630
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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: Ranger75 - Sunday, Jul 17, 2011 at 19:22
Sunday, Jul 17, 2011 at 19:22
You shouldn't have to do anything to suppress RF problems - take it back!
If I were you I would take it back to the manufacturer/supplier and ask for full refund as the device appears not meet mandatory Australia's EMC legislation.
AnswerID:
460232
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
AnswerID:
460236
Reply By: Puma1 - Sunday, Jul 17, 2011 at 21:08
Sunday, Jul 17, 2011 at 21:08
I replaced
mine with the cheap ones ($2.95 for a pack of 2 including freight) and guess what?
My TV reception is
FANTASTIC!!!!
Even better than before I think!! LOL
Weird
AnswerID:
460244
Follow Up By: Member - Redbakk (WA) - Sunday, Jul 17, 2011 at 23:25
Sunday, Jul 17, 2011 at 23:25
Where from Puma1?.....website maybe? or Bunnings?
What brand?
FollowupID:
733910
Follow Up By: Puma1 - Monday, Jul 18, 2011 at 00:25
Monday, Jul 18, 2011 at 00:25
Sorry I got the price wrong they are not $2.95 per pack of 2 including delivery they are only $2.25 per pack. I bought 1 pack first to make sure they fitted and worked (they did) then I bought 14 more pack and did the whole 5th wheeler.
Current eBay listing is 180667342974 (
bright white = to 10 watt halo but only 2 watts for these and plug right in - perfect!!)
If you search ebay there are yellow ones, red ones etc they are a bit more expensive (they are going to blow the budget at about $8 for 2 delivered) but work great too!
Current eBay listing 320567749925 (Red)
Current eBay listing 220815227530 (Yellow) I Recon these will be great anti insect lights outside, these ones have extra diodes so are even brighter.
Current eBay listing 320729359581 (Blue)
I know people get them out of the US and end up paying up to $50 a pack of 2 delivered so if you were thinking of doing that - don't get these!
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Follow Up By: Member - Redbakk (WA) - Tuesday, Jul 26, 2011 at 23:22
Tuesday, Jul 26, 2011 at 23:22
Thanks for the info.
FollowupID:
734711
Reply By: David l3 - Monday, Jul 18, 2011 at 12:23
Monday, Jul 18, 2011 at 12:23
Use LED Lights to Save Energy.
If you watched the Times Square New Year's Eve ball drop you saw it illuminated by 9,576 white LEDs which replaced the 600 incandescent bulbs before. The new ball is twice as
bright but uses a fraction of its predecessor's electricity.
More and more professional
led lights manufacturers tech information on the topledsupplier website.
AnswerID:
460282
Reply By: burnsy - Monday, Jul 18, 2011 at 18:23
Monday, Jul 18, 2011 at 18:23
Firstly thank you all for your advice and thoughts.
I spoke to my supplier today and he said said that occasionally they come across this phenomenon so they have fitted Toroidal ferrite around the feed cord(s) to the LED. They are going to supply me with some to see how it goes.Also it depends on what style of coax lead is fitted and where it runs in relationship to the light power wires.
I will let you all know.
AnswerID:
460301