LED Bulb alignment

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matthewy03

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2011 Denali, I purchased H13 LED Bulb replacements from Xenon Depot. My question is after installation; I've read that LED's should be at 9 and 3 o'clock. Since the H13's have 4 LED's due to high beams/low beams combined, do the low beam LED's still need to be properly positioned at 3 and 9 on these headlights, or since the housing are round, is the beam patter entirely from the distance the LED is in from the housing, which should be spot on to the filament from the original lights?

Currently one is more like 10 and 4 o'clock, and one is more up and down on low beams, but the beam itself is similar.

Thanks.
 

Joseph Garcia

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Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

Yes, the alignment of the LEDs on the stick should be as close to 9:00 and 3:00 as possible to obtain the correct beam rotational placement and not blind oncoming drivers. My 07 should have the same headlight housings as your does, and mine are properly aligned.

My question to you is, are your LEDs adjustable? Some of the cheaper ones are not adjustable, so you are stuck with whatever alignment was in place when the stick was bonded to the LED's main housing at the factory. My LEDs are adjustable, meaning that I can rotate the LED stick within the LED's main housing with a set screw, so that when the LED's main housing is inserted into the headlight housing and twisted to lock in place, the LEDs will be correctly positioned.

LED Headlight Alignment Guide.jpg
 

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