Bulbs are two months old, sometimes the front two light come on and go off with out the other two doing anything, then other times bulbs 2 and 4 flicker and go off not even powering up that much, my ohms change something serious with every diff test i do i don't have a clue what is going on...i know there is a couple of end caps that should be replaced as they are missing the plastic green piece that you turn the bulbs (lock the bubls) in place with...I did just try a new harness got alot better readings with ohms but still don't exactly know the problem...my luck bulbs but i ohmed them out and they tested fine so i just don't know