...little update. I tried to do what I suggested to you as per demos. re: the two light systems head-to-head. Failed! I've seen some seperate images from those on perhaps this site, as well as others.., revealing the patterns, etc. Anyway, on my search to give you the best advice, as per this date, I wanted to see if I could even further upgrade my headlights.., albeit more of a curiosity on my part. Hmmm... I was surprised to see so much disappointed IPF users. Seems their quality control has gone downhill, or design changes are less than desirable.., hmmm... don't know what the real deal is about them, but the fact remains that there are a lot of complaints.., see for yourself. Maybe they are made in godless commie china now! (Remember, every dollar we send to china supports their industrial drive to fulfill their "declared unrestricted warfare" against the West, i.e., US, as in the U.S.A.). Anyway, some say the glass on the CIBIES are thicker than the IPF. Whatever.., just get some rectangle wire stone guard protectors. Those are useful for any headlight. Set should only set you back under twenty bucks.
I have never read anyone with IPF's describe the difference in overall spread differences between the CIBIE's to the IPF's.
Once had some lucas aux. lights on my '61 Porsche. One displayed a sharp rectangle light about 180 degrees to the horizontal, and from the bumper, immediately downwards, and out to about a 100 feet. Those were the best I've ever had, lol, yet the Brits, when discussing upgrades frown upon the now defunct simple Lucas products, i.e., in order to get into restorations, etc. Their 'pencil beam' lights would light up bascially just a two lane road, i.e., before it became 4 lane Interstate 80, some mile out! Problem with that was that with the headlights on, with both the wide, and pencil beams, every freak'ing rabbit in the neighborhood would come to the light, and that's the last thing they would see, as travelling at 90mph, was just a constant thump, thump thump, etc., lol, kindof nightmarish.
Anyway, the CIBIE lows have great side to side coverage, and then going to highs.., is a big difference. Startling I say, similar as to just only running the Lucas beams descriped above . If I had a camera, and could figure out how to do it, I'd send in some pics. Maybe someone here will do it to theirs.., meaning both IPF, and CIBIE camps, and describing the wattages they use. Best comparison would be two views, one from each company, with the same wattage bulbs types, in order to really make a glass dispersion look see as per their crystal splayings. Seems like the industry types do not want us to really 'see' what the results would be like by buying their product. It's like left to us to share the reality of those alleged results.., no easy task, 'eh? :

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