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Willem



Member Since: 13 Apr 2022
Location: Durbanville
Posts: 11
South Africa 2004 Defender 110 Td5 SW Galway Green
LED Headlights
I have installed LED headlights and every now and then they cut out for a couple of minutes. Could this problem be relay or light switch related?
Post #965810 23rd Sep 2022 6:44pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1757
United Kingdom 
Which ones did you install ?
Post #965819 23rd Sep 2022 7:51pm
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Willem



Member Since: 13 Apr 2022
Location: Durbanville
Posts: 11
South Africa 2004 Defender 110 Td5 SW Galway Green
130 Watt Jeep headlights
Post #965826 23rd Sep 2022 8:24pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19568
United Kingdom 
Does it happen whilst you are driving? If so it maybe a loose connection or ground, affected by vibration.

If not, perhaps it’s some thermal cut out within the circuits.

Another possibility is a connection fault on the relay trigger coil ground or live side effectively turning it on and off if the connection fails.

Worth checking the ground continuity and supply voltage.

Typically LED’s are a lot most sensitive to poor connections and grounding issues. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧
Post #965832 23rd Sep 2022 8:48pm
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Willem



Member Since: 13 Apr 2022
Location: Durbanville
Posts: 11
South Africa 2004 Defender 110 Td5 SW Galway Green
Yip, while I’m driving. I’ll surely test the ground continuity and change out the relay while I’m at it. Thx for the advice.
Post #965833 23rd Sep 2022 8:52pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16871
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It could be switch related, the headlight switch and the dip switch are notorious for failing. I presume that your LED headlights are not 130 watt units (if they are you guaranteed to fry the switch) and that this figure is some kind of equivalent light output figure.
Post #965835 23rd Sep 2022 9:15pm
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Willem



Member Since: 13 Apr 2022
Location: Durbanville
Posts: 11
South Africa 2004 Defender 110 Td5 SW Galway Green
Maybe I should run the low and high beams through relays if there are any chances of frying my light switch, providing the grounds and relays are good. Sort of makes sense.

Mmmmm Idea
Post #965845 23rd Sep 2022 9:53pm
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