your headlight switch needs to be replaced. My Lincoln had the same problem, it all stems from the auto dimmer feature...replace the headlight switch (mine was 70-100 dollars) and your lights will work fine.
Make sure the battery cables are clean and run a good ground from the body to the negative battery cable flickering bright or dull? do they flicker only when motor is running? if they flicker only when the motor is running and are full brightness it is probably voltage regulator.i need more info on problem
Might be a weak battery
A loose battery cable can cause your vehicle to on most stall and it can cause the lights to Flickr. Make sure your battery cables are tight and free of corrosion.
Your entire automobile electrical system is grounded to the frame of the vehicle. A loose or corroded ground wire can cause the dash lights to Flickr and the car to stall out.
There are several things that can cause your 1996 Nissan dashboard lights to flicker. The most common cause is a bad ground wire. Check the ground wire to make sure it is tight and free of corrosion.
Make sure you have a good earth ground between the body of the car, the engine block and the battery.
Fuse connections. The connectors for the dome light in the fuse panel get loose, you can try and bend them back with a small screwdriver to make the connection again.
A fluorescent tube will flicker is the temperature is cold or the fixture has a bad ground to the electrical system.
Check your tires to make sure there are not out of round and properly balance.
The flasher unit is about to give out. There are 2 flasher units, one for the turn signals, and one for the hazzards.
Yes it will with a regular Edison bulb but when it comes to the cfl and florecent tube lights well their gases can settle and cause that dancing light or flickering if seen through a shade with those just remove shake and replace but they also can flicker with voltage changes but they need a more significant voltage change to be noticeable
Make sure you have it out of AUTO LIGHTS ON. Do the lights automatically come on when the car is started? If so, the Auto Lamp switch may be on.