My headlights will blink off and come back on. I have also noticed that they do it when I go from bright to dim. They use to do it every once in a while now it is more often. I have replaced the headlight switch. Please help because it has gotten to the point where I can not drive my car at night.

Thanks for any help you can offer.

They do it at times other than blinking to dim.

it sounds to me like you either have a faulty head lamp relay, or a loose lead at some point in the circuit. Check the connectors to the bulbs, and if they are good, check the ground lead to see if it is loose or corroded. If those are all good, get a manual and find the location of the relay.