Trucklite LED headlight issue - Defender Source
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  #1  
Old December 28th, 2015, 10:25 PM
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Paul Kennington
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Trucklite LED headlight issue

All:

One of my headlights is out. For those who don't know, on Trucklites, the top half is the normal headlight, and the lower half is the high beam. Both upper & lower come on in the high beam setting. Anyhow, the upper part isn't working with the headlight switched on, but it comes on when I pull the stalk back, or click it forward for high beams.

Any ideas? I thought LED headlights were supposed to last for ever, these are less than a year old. I'd like to make sure it's the headlight itself before contacting Trucklite.

Thanks,

Paul.
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  #2  
Old December 28th, 2015, 10:38 PM
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Start by doing a simple test at the connector on the headlight to ensure you're getting voltage with the low beam on. Traditionally the low beam circuit is de-energized when the high beams are on (although not when you pull the stalk back), so the low/high combo working off the high beam is just an integral feature to the light and not indicative of a working low beam circuit.

-Ash
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  #3  
Old December 28th, 2015, 10:43 PM
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Check the switch stalk first to make sure it is working properly. Then check the wiring as I doubt it is original and someone likely could have done a poor rewiring job. Then check the lights. Are both lights behaving the same way? That would tell me it's unlikely to be the lights as I doubt both would go out simultaneously in the same manner. Then it's the wiring or switch.
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  #4  
Old December 28th, 2015, 10:43 PM
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Sounds like a broken dip/dim switch. As above check for power at the plug.
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  #5  
Old December 28th, 2015, 11:07 PM
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Did you check your fuses? Dip beams are fed individually from the fuse panel. If ok it looks to me like its probably a wiring issue and not a switch. If you have power all the way to the light then its the light. Attached here is the dip/dim diagram for uk spec not sure if it applies to yours or not. Click image for larger version

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  #6  
Old December 28th, 2015, 11:22 PM
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I would start by plugging in the fully working one in the non working side, and vice versa, then you'll know if it's the actual unit or if it's a wiring issue. Then follow the steps listed above.
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  #7  
Old December 29th, 2015, 02:06 PM
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One of mine just dropped two of the five LEDs on low-beam. Are these super-voltage sensitive or something? Awesome eBay supplier told me to pound sand...
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  #8  
Old December 29th, 2015, 02:13 PM
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I was thinking truck-lite only had two (2) LEDs??
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  #9  
Old December 29th, 2015, 02:24 PM
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Quote:
Originally Posted by JimC View Post
One of mine just dropped two of the five LEDs on low-beam. Are these super-voltage sensitive or something? Awesome eBay supplier told me to pound sand...
two of five? Are these the older style with the 10 Luxeon Star modules behind the reflectors? Since these use Luxeon Star modules, you could probably repair these relatively easily...
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  #10  
Old December 29th, 2015, 02:47 PM
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I had a similar issue with my Trucklites. I turned out to be a slightly corroded glass fuse.
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  #11  
Old December 29th, 2015, 03:36 PM
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Quote:
Originally Posted by sonoronos View Post
two of five? Are these the older style with the 10 Luxeon Star modules behind the reflectors? Since these use Luxeon Star modules, you could probably repair these relatively easily...
These are the old style, Iraq-nostalgia models. They look sealed, but I think it might be a voltage issue. It happened simultaneous to a harness fire...
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  #12  
Old December 29th, 2015, 04:17 PM
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--- As a casual observer... these LED headlights are sounding better and better....

I think I'll stick with my E code Hellas a little while longer..


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  #13  
Old December 29th, 2015, 11:27 PM
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Just wondering, led light don't produce heat? Might not be a problem for most of you in an area without snow but, in snowy conditions, don't they cover up with snow? Usually, incandescent light melt it right off. Just wondering...
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  #14  
Old December 29th, 2015, 11:45 PM
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Quote:
Originally Posted by CDNRover View Post
Just wondering, led light don't produce heat? Might not be a problem for most of you in an area without snow but, in snowy conditions, don't they cover up with snow? Usually, incandescent light melt it right off. Just wondering...
You can get a model with a heater in the lens

http://www.truck-lite.com/webapp/wcs...entryId=106538


https://www.offroadelements.com/rigi...ngler-jk-2007/
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  #15  
Old December 30th, 2015, 08:12 AM
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Quote:
Originally Posted by CDNRover View Post
Just wondering, led light don't produce heat? Might not be a problem for most of you in an area without snow but, in snowy conditions, don't they cover up with snow? Usually, incandescent light melt it right off. Just wondering...
I've driven in the snow / slush with them and found them no different to regular headlights for accumulation.
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  #16  
Old December 30th, 2015, 08:29 PM
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Alright, I will stick to normal light.. Too expensive versus gain.. Imo.
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  #17  
Old December 30th, 2015, 09:51 PM
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All:

Turns out it was a fuse issue. Not blown, but I put a new one in & the headlight worked!

Thanks for the help.

Paul.
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Past Land Rovers: '96 Discovery SD, '00 Range Rover HSE, '04 Discovery SE7, '07 Range Rover HSE, '08 LR3 SE7.
Past fleet: '89 Classic Mini, '83 Porsche 911 SC Coupe, '89 911 Carrera targa, '96 911 Carrera 4, '07 Toyota FJ Cruiser, several Minis.
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  #18  
Old December 31st, 2015, 11:29 AM
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This urban legend never dies. Possibly this may have been an issue in rare cases for very early generation LED lights but I've never had an issue nor have I heard of anyone having an issue. LED lights also put out heat (not as much as standard). This concern is almost always raised by someone who don't own LED headlights.

Quote:
Originally Posted by CDNRover View Post
Just wondering, led light don't produce heat? Might not be a problem for most of you in an area without snow but, in snowy conditions, don't they cover up with snow? Usually, incandescent light melt it right off. Just wondering...
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  #19  
Old December 31st, 2015, 11:58 AM
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On the issue of heat, those that have fitted LED headlights did you just fit them inside of the plastic light bucket? Not sure if newer models just have the fitting ring or do all have the plastic bucket.

Just wondering about the heat sinks over heating on long hauls enclosed.
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  #20  
Old January 3rd, 2016, 03:37 PM
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Does anyone have a model number to the ones that fits a D90 without having to modify to much? I'm from South Africa and the LED technology us still very expensive so I'm looking at maybe using the truck lite ones. We do have certain truck lite products but haven't seen those head lights being used here. What's the average price per pair?
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