probably got a short somewhere.
That can happen when there is a bad ground to one of the lights.
loose bulbs
my dash lights blink and dim when braking/found t this was a ticoverter that rusted
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.
If the lights flicker when the vehicle is running, the alternator is on it's way out.
Loose battery or alterator connections
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.
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.
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.
voltage increases when when rpms are increased,faulty voltage regulator or alternator
This Had happened to me... Try changing the dimmer switch... It cured my problem.