I'm going to have to disagree with you on the cool blues producing less light, they actually produce a whiter light because of blue coating. same deal with HID they tend to have a more blue color temperature. I've been running different types of blue coated bulbs for the last 4 years and they make a hell of a difference. last 2years i've been running 90/100w blues in my car. i can tell you from first hand experience that these produce more/better light than a silverstar.NeufUnSix said:Avoid CoolBlues, they are just regular halogen with blue tint added so they actually produce less light, and they look stupid. How many Hyundais do you see running around with them? Nuff said.