okay i have heard some good things about these...just wondering a couple things about them...
do they use the dome reflectors? or is someother fixure needed?
i also read someting about if they are not straight up and down the burn out? (might be confused there?)
and i know they come with a waranty...but how does this work do you have to send them the bulb back or what?
if you have any pros/cons please let me know 


