If it's a Sunfire, go to the dealer. I think they were recalled for that problem.
Usually the ground wire that comes out of the headlight that is fastened to the car body is the culprit. You will usually find the wire terminal from the headlight plug attaching to the car body or chassis ground not too far from the headlight. Fairly common problem.
More than likely it is the headlight dimmer switch.All headlight operations go through it once you have turned them on at the switch. It can be the relay.
== == more than likely your dimmer switch is bad,hope that will help
You cannot use most fluorescent lights with a dimmer. Just about any incandescent bulb WILL work with a dimmer. Occasionally, when a halogen bulb burns out, it will destroy a dimmer switch but halogen bulbs are considered incandescent and other than that little problem they work well with a dimmer.
Proxima Centauri appears dimmer than Betelgeuse because it actually is dimmer by several orders of magnitude.
bad plug at the wiring connection
A bulb designed for a higher voltage application than the one it's used in will not shine as brightly as it is supposed to. For instance; a 24 volt light in a 12 volt socket will be dimmer than it's designed to be.
It depends. As of March 2012, Venus is significantly brighter than Jupiter. However, Venus passed its maximum brightness around the beginning of March and will be getting dimmer.
Ground circuit. 25 Year old ground is telling you that it is getting corroded. Clean the male on the light and the female on the connecter. If no change, work backwards in the circuit, cleaning all grounds, until brightness is restored
A 40 watt bulb is dimmer than a 100 watt bulb.
a sun is a star so it would be considered both dimmer .
Remove the wiring harness from the back of your headlight assembly. Remove the headlight assembly retaining bolts. Reverse the process to install your new headlight assembly.