jmarwill Posted February 15, 2014 Share Posted February 15, 2014 I had HID headlights installed on my 2005 GX 4 yrs ago and one of the ballasts appears to be failing (the headlight recently started to work only some of the time). My question is, what is the typical life of the HID ballasts? Does anyone have a brand preference for longevity or other performance differences? Thanks, Jeff Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted February 15, 2014 Share Posted February 15, 2014 OEM HID components including ballasts usually last for the life of a vehicle. My 2000 LS400 is still on the factory installed HID bulbs and all the rest of the original headlight components.Aftermarket HID kits vary widely in quality with some of them being complete junk. I'm not a fan of aftermarket HID although they usually work much better and are less dangerous to other drivers when installed on a vehicle with projector headlights like your GX has. People seem to get the best results from aftermarket HID kits if they are powered from the battery or the engine compartment fuse box using a relay rather than from the headlight connectors. How is your HID kit powered? Quote Link to comment Share on other sites More sharing options...
jmarwill Posted February 15, 2014 Author Share Posted February 15, 2014 Thanks for your response. I had a local car electronics shop do the installation so I'm not sure how they are powered. Quote Link to comment Share on other sites More sharing options...
eugene.s Posted February 16, 2014 Share Posted February 16, 2014 Check the headlight fuses first. The relevant ones should be in the trunk compartment (consult your owner's manual to isolate the relevant fuse) Quote Link to comment Share on other sites More sharing options...
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