I can vouch for Cibie units as I used them for many years. They are the best of many round e-code headlights I have tried. 

There is another option now which I'm tempted to try:

http://www.rallylights.com/hella-super-7-round-h4-for-2-headlamp-systems-each-with-city-light-hl39519.html

If you don't mind the unusual look, these HID lights have a glass lens and a DRL:

ModifyStreet 7" Inch Round H6014/H6015/H6024 Chrome Semi-Sealed Beam Glass Lens Whie Angel Eye Halo Retrofit Real Projector Headlights w/ 10000K HID Kit https://www.amazon.com/dp/B011MTXIY2/ref=cm_sw_r_cp_awd_14qcxbG3H3WA9

Wysłane z iPhone'a

Dnia 07.04.2016 o godz. 16:29 Brent Weide <brent.weide@GMAIL.COM> napisał(a):

> In my quest for illumination i intend to retrofit back to an 84 single
> round headlight grill, headlight buckets, cibie (
> http://www.amazon.com/Cibie-082440-Light-Unit/dp/B008DQV88Q/ref=sr_1_1?s=automotive&ie=UTF8&qid=1460052438&sr=1-1&keywords=Cibie+082440+Light+Unit)
> enclosures, and Osram H4 12v Hyper Bulbs (85/80W).  This is all on the
> trusted guidance of Jay Brown.
> I had intended to go with LED bulbs in the shape of the offering available
> on the samba (http://www.thesamba.com/vw/classifieds/detail.php?id=1801829)
> but decided to stick with the bulbs Jay advised.
> I'll be throwing a south african lower grill (the wrap around) on as i've
> always liked that look.
> Will post once i'm assembled with thoughts on the results of whether i can
> see more better at night with the H4's.
> 
> Thanks,
> Brent
> 
> On Thu, Apr 7, 2016 at 8:49 AM, Stuart MacMillan <stuartmacm@gmail.com>
> wrote:
> 
>> The Insurance Institute just did this on new vehicles and the results were
>> poor:
>> http://www.latimes.com/business/autos/la-fi-hy-car-headlights-20160330-story.html
>> Video here: https://www.youtube.com/watch?v=3Sp7nvuOxtY
>> 
>> I think the best way to test is on the road--a long straight one on a dark
>> night with reflective and non-reflective images down the road and measure
>> the distance when they come into view. A stuffed deer would be good. ;-)
>> You'd have to close the road unfortunately to do it safely unfortunately,
>> or find something on private property.
>> 
>> The 80/100w H4s I have on my '85 look just like the bright lights in the
>> video.
>> 
>> Stuart
>> 
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>> Of Brent Weide
>> Sent: Wednesday, April 06, 2016 7:15 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: 91 Headlight Upgrade
>> 
>> Folks:
>> I'm about to embark on the upgrade of the 1991 square 9004 headlights to
>> the early vanagon H4 round headlights and would appreciate  your assistance.
>> Does anyone know of a way to accurately measure the improved lighting
>> using every day tools?  I'd like to measure that headlight strength before
>> and after the change.
>> I'll be documenting the change (good or bad) on my website and appreciate
>> your feedback.
>> 
>> All the best,
>> Brent
>> --
>> Brent Weide
>> Portland, Oregon
>> www.weidefamily.net/vanagon/
> 
> 
> --
> Brent Weide
> Portland, Oregon
> www.weidefamily.net/vanagon/