Originally posted by CSVT985:Are they ribbed or smooth - I know that sounds like Condom types....but Acura integras are smooth, Ribbed show off more color right?
I assume you are refering to fluting on the lens itself (the black lens in the pics above). The DOT lamps have some very small ribs to blur the cutoff slightly. The cutoff isnt so sharp so you are less likely to have someone bright you when you go over a small bump in the road. The ECE lamps have a clear (unfluted) lens.
The fluting on the lens doesnt always effect color. If you push the cutoff shield towards the bulb about 1mm, your lamp will appear more blue. The colors in the center by the small step will have a lot more blue and purple in it. Since these colors can stray somewhat, you appear to be running a higher color temperature lamp. The opposite also holds true, and you will get more reds and yellows. I did this on my foggies that I built. Push in or pull out the shield too much and it will be too far past the focal point bluring your cutoff somewhat.
