PIAA Xtreme White 4150K, should be similar to Silverstars. Same goes for PIAA Platinum Spark 4000K.

PIAA Super Plasma and derivatives are 5000K, but I hate them. You are paying a lot of money for very little visibility. And don't even talk about the 60/55w = 110/100w or whatever...

Basically, the higher the colour temp, the less ideal it is for illumination. But that's a very general statement.

To align your lights, enter "headlight alignment" or "aligning headlight" in google or yahoo...