I looked at my owner's manual for my 2007 GMC Sierra and it says the high beam headlights are 9005 and the low beam headlights are 9006. The ones that i find online are either 9004 Bi-Xenon or 9007 Bi-Xenon. I want bi-xenon so i can have high and low beam lights still. I know if you put the wrong light in, it could ruin it, so which ones do i buy? And can i have some insight on what the numbers mean please? thanks!
