Headlight help
That's me
The relay kit won't correct the voltage regulation. To do that, you need to turn your attention to the charging system. There are many different causes of flickery/spiky/"noisy" line voltage. A burnt stator winding, one or more open or shorted diodes, a faulty voltage regulator, dirty wiring connections, improper system ground, one or more worn alternator brushes. Run a 14ga wire from the battery negative terminal to the voltage regulator base, and from the voltage regulator base to the alternator housing (most of them have a "GRD" hole on the back -- use a short screw to secure the wire so it doesn't stick too far in and hit the spinning rotor). This will put the whole charging system on the same ground plane, which often makes the charging voltage a great deal steadier. See here, and if your car is a '69 or older model, install a NAPA Echlin VR-1001 or Standard-BlueStreak VR-128 regulator.
There are a few reliable vendors such as Candlepower (for whom I used to work) and Powerbulbs.com .
Yeah, any easily-available #9003 bulb will work until you get the problem solved, then go back to the high-zoot bulbs.
That's me
The relay kit won't correct the voltage regulation. To do that, you need to turn your attention to the charging system. There are many different causes of flickery/spiky/"noisy" line voltage. A burnt stator winding, one or more open or shorted diodes, a faulty voltage regulator, dirty wiring connections, improper system ground, one or more worn alternator brushes. Run a 14ga wire from the battery negative terminal to the voltage regulator base, and from the voltage regulator base to the alternator housing (most of them have a "GRD" hole on the back -- use a short screw to secure the wire so it doesn't stick too far in and hit the spinning rotor). This will put the whole charging system on the same ground plane, which often makes the charging voltage a great deal steadier. See here, and if your car is a '69 or older model, install a NAPA Echlin VR-1001 or Standard-BlueStreak VR-128 regulator.
There are a few reliable vendors such as Candlepower (for whom I used to work) and Powerbulbs.com .
Yeah, any easily-available #9003 bulb will work until you get the problem solved, then go back to the high-zoot bulbs.