Loose battery or alterator connections
That can happen when there is a bad ground to one of the lights.
I've heard that if you have an automatic light switch sut-off switch and are having problem with your headlights flashing like a police car, it was caused by the cars computer.
loose bulbs
A loose or corroded ground wire can cause your 1995 Jeep headlights to blink on and off. Make sure the ground wire is tight and free of corrosion.
The same thing that causes you to blink constantly. Their eyes are dry and they are keeping them moist.
If the lights flicker when the vehicle is running, the alternator is on it's way out.
probably got a short somewhere.
If a Ford Explorer headlights blink on and off after 10 minutes of driving, it is highly probable that there is a short bad overdrive pump. Rest the car and clean the grounds. Also check for loose or broken wires.
Normally the blinking on and off indicates there is a broken switch, broken wire, or a piece of bare wire. First, I would test the switches.
bad headlight switch.
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
Misfire detection.