Clean your battery terminals and grounds! Or does everyone already know that?

[atc_marty]

So I'm going about my business last week installing a JWest headlight relay after my hi-lo beam/turn signal switch caught fire. When I got to connecting the relay to the battery, I figured the contacts could use a cleaning. Out comes the wire brush, off come the leads and 15 minutes later all the wire connections near the battery, including the chassis ground, are clean.

A few days later I drove home from work after dark and I notice immediately that the headlights are brighter and whiter, instead of their old dim yellow selves. Dash lights, same thing. Now I can see street signs, pedestrians and how fast I'm going.

I'm not sure if I've stumbled upon something that is already common knowledge for experienced car guys, but I couldn't believe the difference that it made. I wish I had taken a before/after! Anyway, the lesson I learned is to keep contacts and terminals clean!

[theiceman]

Also don't forget your relay kit also routed power directly from the battery to the lights, that has to help somewhat too.

[HawgRyder]

Also...check the grounds back at the rear tail lights too.
They have brown wires going to tabs or screws on the body.
Bob