So, its 5:00AM, on my way to work this morning, blacker than the hubs of hell and just as I reach the end of town I see the headlight dim slightly. ??? WTF? Shortly thereafter it comes back on brightly....as I continue on it repeats...so I begin to time it....dim for about 7-8 seconds then back on brightly for 2-3 seconds....I goes like this all the way to work, about 20 miles. I have never noticed this before and it is one of those things that makes you go.....hmmmm... looking for thoughts and ideas.....