Originally Posted By JohnH
My Charger does that at time,, I'm thinking Halogen bulbs causing trouble.. A friend of mine had that trouble put regular bulbs in the high beam,,, fixed the problem,,


The Hella's don't cause the trouble, they make the already existing problem noticable, because they want a bit more electrical power.

Headlights behind a relay have a number of positives;
- No more flickering
- Brighter headlights
- No more high electrical load going through the old/worn headlight switch
- No more high electrical load going through the bulkhead connector.
- No more high electrical load going through the fusebox.

Every 45 year old connector developes resistance over time because of copper/brass getting dark and polluted.
High current and resistance = heat.
Enough heat will melt the plastic around the connector itself and a dashfire is soon to happen.

Just renewing a headlight switch for instance only pushes a potential fire problem to the next point of high resistance.