hoping for advice,my lefthand lowbeams out for the 2nd time, 1st time I changed bulb,that did nutn,ckd fuses,grounds, wires that did nutn,finnally took to dodge ,they replaced module on side of fuse box,400.00 bucks.that was 1 year ago,last week lamp out bell rang again sooo I changed bulb,etc. etc. any suggestions before Im back at dodge..2004 3500 dually,320k

 

If those bulbs are touched on the glass area by a hand or a greasy/dirty fingers it will shorten the life of them.So might try another,keep it clean and see.Might also be a ground issue and high resistance.Lots of things can/will cause high resistance and shorten the life of a bulb.