2013-2015 headlamp replacement - HID low beam (2 Viewers)

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This has me wondering if they changed something about how or where they are produced.

What am I missing here? Wouldn't they be on as DRLs every day (that you drive that truck)? Why have I had such bad luck with mine?

My DRLs were disabled before I left the dealer lot I purchased my rig from.
 
What am I missing here? Wouldn't they be on as DRLs every day (that you drive that truck)? Why have I had such bad luck with mine?

I turned my DRL's off a long time ago, and my 9011's are still going strong. Can't say that cause and effect, or just a coincidence; but it wouldn't hurt bulb life to turn off the DRL's.

As a note, I run with my parking lights on all the time. Better for visibility than DRL's because the taillights are also lit when the parking lights are on (whereas they are off when just the DRL's are on) - better visibility for those following.

HTH
 
Has anyone had 9011s burn out without DRL use?
 

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