Projection fittings are designed to throw light at a greater distance, and the beam is more defined. Stock lens are more open beam and create a wider fat beam.

In most cases poor light quality is down to incorrect alignment which you should get calibrated bya mechanic, or youself if you know what your doing and have the tools.

What i can say is 99.9% of the time its down to the lamp used, to get the best from any light fitting you need the correct lamps, HID or Gas Discharge lamps offer a brighter cleaner whiter light, and will work great in a projector. Standard halogen lamps give off a warmer light which is more orange in colour.

a HID lamp will reduce fatigue, but if not set correctly IE: too high will cause mega danger to on coming traffic, and yourself

bit light wearing glasses,
projector - long sight better ahead vision
standard reflector - better near vision, poor distance.

vince

 

I'm interested in getting these aswell.
I have a 2002 LX Civic, and i was wondering if i get something like this what else am i going to need. will any light bulbs work? Or am i going to have to get an HID kit aswell, and how does that halo effect work?
My car takes 9003 bulbs and I think my Highbeems are the same bulb....
http://cgi.ebay.ca/01-03-HONDA-CIVIC...QQcmdZViewItem

 

Hey you are right JDM does stand for Japanese Domestic Market, but what he is talking about is that those lights are made for the hondas in japan