Flickering Headlights

[Hum2]

Thanks for the great input.

Definitely not a dimming situation....can't seem to replicate it no matter what I do. Off-roading/giggling wires/etc. I had the original factory battery replaced once...bad post....but all it did was reset the radio upon turning the ignition switch on...thus why they replaced the ignition switch first, but that didn't resolve the issue until they replaced the battery.

I'm thinking Phil is on the right track, but I only see a volt drop if I turn on all 8 off-road lights at the same time....but that does not cause a flicker. They claim to have checked the alternator with no issues. Flicker me! :-)

Ric