Headlight Upgrade: IPF or Cibie?
 

Has anyone done a side-by-side comparison of IPF and Cibie 7" round H4 headlights?

What's an IPF? And what do you mean by side-by-side? (lit?)
I have one Cibie 7" (junkyard find- why couldn't there have been 2?) And several sets of the Indian-made Autopals (not so great). Also have a set of 5" Cibies on my W116 (they rock)

This might shed some light on both of your questions:
http://www.rocky-road.com/ipfH4.html

h4 bulbs start at $35? You have to be kidding me.
Look here http://www.rallylights.com/hella/H4.asp first
Hella bulbs start at $4
I have had Cibies lenses before, but prefer my E code Hellas

$59 for a pair of H4 7" roundies?

Daniel Stern Lighting sells the Cibies for that much per side! What other sites sell the Cibie?

I have Hella 7" H4's on mine now, love them. Got them at Rally Lights too. I wonder why the IPF's are so cheap?

jebus.. I think I spent 80$ for the fog and silverstars(both sides)

Back when I had DOT headlamps, I was interested in just this sort of thing. Hella made a glass DOT-approved lamp, and a lexan non-approved lamp. The lexan lamp had a very noticeably better pattern and light output. The price was the same, about $45 each.