My Christmas present this year was a brite box.

I was on the way back from a fireworks display and went from High beam to low for oncoming traffic and the low beam dropped out also, things got dark real quickly. Quickly flashing the high beam on and off again corrected it. This happened about three more times on the way home. Any ideas?

 

I'm not familiar with a bright box but I would check grounds.

 

well let me clear it up Brite Box <- clicky here

I would normaly think grounds also, if it were not so repeatable.

 

I bet your turn signal stalk switch (multi function switch) is going goofy on you. Common problem on the second gen trucks. I would start there. Worst case you would have to replace it.

 

Call Joel at Baker and he will help you with this problem. I had the same problem and they replaced the boxes on mine.